Cyclones are caused due to – (1) low pressure (2) high pressure (3) low temperature (4) high density

Cyclones are caused due to – (1) low pressure (2) high pressure (3) low temperature (4) high density
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(1) low pressure Explanation: Cyclones are huge revolving storms caused by winds blowing around a central area of low atmospheric pressure. In the northern hemisphere, cyclones are called hurricanes or typhoons and their winds blow in an anti-clockwise circle. In the southern hemisphere, these tropical storms arc known as cyclones, whose winds blow in a clockwise circle.
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Cyclones are caused due to (1) low pressure (2) high pressure (3) low temperature (4) high density

Description : Cyclones are caused due to (1) low pressure (2) high pressure (3) low temperature (4) high density

Last Answer :  low pressure

Gulf streams are caused by-----. A. Cyclones B. Ocean Pressure (Answer) C. Temperature D. Difference in water level

Description : Gulf streams are caused by-----. A. Cyclones B. Ocean Pressure (Answer) C. Temperature D. Difference in water level

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Coastal Andhra Pradesh and Orissa often face natural disasters due to: [CPO SI 2003] (a) cyclones (b) earthquakes (c) landslides (d) tornadoes

Description : Coastal Andhra Pradesh and Orissa often face natural disasters due to: [CPO SI 2003] (a) cyclones (b) earthquakes (c) landslides (d) tornadoes

Last Answer : Ans: (a)

Coastal Andhra Pradesh and Orissa often face natural disasters due to – (1) Cyclones (2) Earthquakes (3) Landslides (4) Tornadoes

Description : Coastal Andhra Pradesh and Orissa often face natural disasters due to – (1) Cyclones (2) Earthquakes (3) Landslides (4) Tornadoes

Last Answer : (1) Cyclones Explanation: During summer, the Bay of Bengal is subject to intense heating, giving rise to humid and unstable air masses that produce cyclones. Widespread death and property destruction are ... Bay of Bengal, over 58 percent approach and cross the east coast in October and November.

The tropical cyclones of the Bay of Bengal are usually called (a) Typhoons (b) Hurricanes (c) Depressions (d) Tornadoes

Description : The tropical cyclones of the Bay of Bengal are usually called (a) Typhoons (b) Hurricanes (c) Depressions (d) Tornadoes

Last Answer : Ans: (b)

The amount and Intensity of monsoon rainfall is determined by the frequency of (a) western disturbances (b) dust storms (c) cyclones (d) tropical depressions

Description : The amount and Intensity of monsoon rainfall is determined by the frequency of (a) western disturbances (b) dust storms (c) cyclones (d) tropical depressions

Last Answer : Ans: (d)

Rainfall in India is not associated with: (a) orography (b) convection (c) cyclones (d) anticyclones

Description : Rainfall in India is not associated with: (a) orography (b) convection (c) cyclones (d) anticyclones

Last Answer : Ans: (d)

In which season is the frequency of tropical cyclones in the Bay of Bengal maximum? [I. Tax & Central Excise 1991] (a) During monsoon (b) After summer (c) During winter (d) During autumn

Description : In which season is the frequency of tropical cyclones in the Bay of Bengal maximum? [I. Tax & Central Excise 1991] (a) During monsoon (b) After summer (c) During winter (d) During autumn

Last Answer : Ans: (b)

Winter rains in North and North-West India are generally associated with the phenomenon of: [NDA 2003] (a) retreating monsoon (b) temperate cyclones (c) local thunderstorms (d) shift in jet stream movement

Description : Winter rains in North and North-West India are generally associated with the phenomenon of: [NDA 2003] (a) retreating monsoon (b) temperate cyclones (c) local thunderstorms (d) shift in jet stream movement

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Storms of gases are visible in the chromosphere of the Sun during – (1) Cyclones (2) Anticyclones (3) Lunar eclipse (4) Solar eclipse

Description : Storms of gases are visible in the chromosphere of the Sun during – (1) Cyclones (2) Anticyclones (3) Lunar eclipse (4) Solar eclipse

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The forests which act as barriers against cyclones are : (1) Alpine forests (2) Mangrove forests (3) Evergreen forests (4) Monsoon forests

Description : The forests which act as barriers against cyclones are : (1) Alpine forests (2) Mangrove forests (3) Evergreen forests (4) Monsoon forests

Last Answer : (2) Mangrove forests Explanation: Mangrove Forest acts as barriers against cyclones and other natural disasters like tidal waves and tropical storms. They act as live sea walls against disasters ... slow soil erosion and stabilize tidal banks against rising sea level, another climate change hazard.

The term 'epicentre' is associated with (1) Earthquakes (2) Volcanoes (3) Cyclones (4) Landslides

Description : The term 'epicentre' is associated with (1) Earthquakes (2) Volcanoes (3) Cyclones (4) Landslides

Last Answer : (1) Earthquakes Explanation: Epicenter is the point on the Earth's surface that is directly above the hypocenter or focus, the point where an earthquake or underground explosion originates. Epicentral distance is used in calculating seismic magnitudes developed by Richter and Gutenberg.

The main cause of Tsunami is : (1) Volcanoes (2) Cyclones (3) Earthquake on sea floor (4) Moon's attraction

Description : The main cause of Tsunami is : (1) Volcanoes (2) Cyclones (3) Earthquake on sea floor (4) Moon's attraction

Last Answer : (3) Earthquake on sea floor Explanation: A tsunami is a series of water waves caused by the displacement of a large volume of a body of water, typically an ocean or a large lake. ... , meteorite impacts and other disturbances above or below water all have the potential to generate a tsunami.

Which of the following two States are prone to cyclones during retreating Monsoon season? (1) Karnataka and Kerala (2) Punjab and Haryana (3) Bihar and Assam (4) Andhra Pradesh and Orissa

Description : Which of the following two States are prone to cyclones during retreating Monsoon season? (1) Karnataka and Kerala (2) Punjab and Haryana (3) Bihar and Assam (4) Andhra Pradesh and Orissa

Last Answer : (4) Andhra Pradesh and Orissa Explanation: The retreat of the Monsoon which generally occurs between September and November brings with it another peak in cyclone origination, noted for its ... Tamil Nadu receives heavy rainfall from these winds as the retreating monsoon winds are moisture laden.

Which one of the following coasts of India is most affected by violent tropical cyclones? (1) Malabar (2) Andhra (3) Konkan (4) Gujarat

Description : Which one of the following coasts of India is most affected by violent tropical cyclones? (1) Malabar (2) Andhra (3) Konkan (4) Gujarat

Last Answer : (2) Andhra Explanation: The frequency of severe cyclonic storms is maxi-mum for Andhra Pradesh while that of cyclone is maximum for Orissa. Considering west coast only, Gujarat is most vulnerable. The average ... frequency is more in the Bay of Bengal than in the Arabian Sea, the ratio being 4:1.

Tropical cyclones in the Bay of Bengal are most frequent during – (1) October-November (2) May-June (3) January-February (4) March April

Description : Tropical cyclones in the Bay of Bengal are most frequent during – (1) October-November (2) May-June (3) January-February (4) March April

Last Answer : (4) March April Explanation: They are most frequent during the summer (June-September) over the northern part of the Bay of Bengal and over Eastern parts of Arabian Sea. They are more ... premonsoon (March-May) and postmonsoon (October-November) seasons and are least frequent during the winter.

'October Heat' is caused due to (a) the absence of rain (b) combination of high temperature and excessive humidity (c) dry hot weather (d) None of the above

Description : 'October Heat' is caused due to (a) the absence of rain (b) combination of high temperature and excessive humidity (c) dry hot weather (d) None of the above

Last Answer : Ans: (b)

What is the major cause of 'October Heat'? (1) Hot and dry weather (2) Very low velocity winds (3) Low pressure systems over the IndoGangetic plains (4) High temperature associated with high humidity

Description : What is the major cause of 'October Heat'? (1) Hot and dry weather (2) Very low velocity winds (3) Low pressure systems over the IndoGangetic plains (4) High temperature associated with high humidity

Last Answer : (4) High temperature associated with high humidity Explanation: The months of OctoberNovember mark a period of transition from hot rainy season to cold dry winter conditions. This period is ... temperature and high humidity, weather becomes oppressive. This phenomenon is known as 'October heat.

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Description : Monsoon is caused by (a) Temperature changes (b) Seasonal reversal of winds (c) Humidity difference (d) Pressure differences

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Coastal Andhra Pradesh and Orissa often face natural disasters due to (1) Cyclones (2) Earthquakes (3) Landslides (4) Tornadoes

Description : Coastal Andhra Pradesh and Orissa often face natural disasters due to (1) Cyclones (2) Earthquakes (3) Landslides (4) Tornadoes

Last Answer : Cyclones

Mercury is an ideal barometric fluid mainly due to its(A) High density (B) Low compressibility (C) Low capillary action (D) Very low vapor pressure

Description : Mercury is an ideal barometric fluid mainly due to its (A) High density (B) Low compressibility (C) Low capillary action (D) Very low vapor pressure

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The variation of atmospheric potential is caused due to: (A) Difference in temperature over the surface of the earth (B) Change in the density of air (C) Both (a) and (b) (D) Neither (a) nor (b)

Description : The variation of atmospheric potential is caused due to: (A) Difference in temperature over the surface of the earth (B) Change in the density of air (C) Both (a) and (b) (D) Neither (a) nor (b)

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The South-East trade winds are attracted towards the Indian sub-continent in the rainy season due to – (1) the development of cyclone over the equator (2) the effect of easterlies (3) the effect of Northern-East trade winds (4) the presence of low atmospheric pressure over North-West India

Description : The South-East trade winds are attracted towards the Indian sub-continent in the rainy season due to – (1) the development of cyclone over the equator (2) the effect of easterlies (3) the effect of Northern-East trade winds (4) the presence of low atmospheric pressure over North-West India

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The density of a gas is maximum at – (1) Low temperature, low pressure (2) Low temperature, high pressure (3) High temperature, low pressure (4) High temperature, high pressure

Description : The density of a gas is maximum at – (1) Low temperature, low pressure (2) Low temperature, high pressure (3) High temperature, low pressure (4) High temperature, high pressure

Last Answer : (2) Low temperature, high pressure Explanation: The density of gases depends upon the temperature. The higher the temperature, the more the molecules are spread out and the lower the density. The result is that warm gases rise and cool gases sink.

The density of a gas is maximum at (1) Low temperature, low pressure (2) Low temperature, high pressure (3) High temperature, low pressure (4) High temperature, high pressure

Description : The density of a gas is maximum at (1) Low temperature, low pressure (2) Low temperature, high pressure (3) High temperature, low pressure (4) High temperature, high pressure

Last Answer :  Low temperature, high pressure

Circulation of gases in furnace is caused by the (A) Change in volume during a change of temperature (B) Difference in density between hot and cold gases (C) Furnace pressure in conjunction with draft in flues(D) All (A), (B) and (C

Description : Circulation of gases in furnace is caused by the (A) Change in volume during a change of temperature (B) Difference in density between hot and cold gases (C) Furnace pressure in conjunction with draft in flues (D) All (A), (B) and (C

Last Answer : (D) All (A), (B) and (C

Air travel has become very important for the north eastern part of India mainly because, (a) the region is mountainous (b) population density is low (c) surface transport routes have to go around Bangladesh (d) air transport is cheaper

Description : Air travel has become very important for the north eastern part of India mainly because, (a) the region is mountainous (b) population density is low (c) surface transport routes have to go around Bangladesh (d) air transport is cheaper

Last Answer : Ans: (c)

Which one of the following statements is wrong regarding the "Norwesters" of Bengal? [IAS 2003] (a) It is caused due to strong surface heating (b) It originates in the Chhotanagpur plateau region (c) It is a kind of thunderstorm (d) None of the above

Description : Which one of the following statements is wrong regarding the "Norwesters" of Bengal? [IAS 2003] (a) It is caused due to strong surface heating (b) It originates in the Chhotanagpur plateau region (c) It is a kind of thunderstorm (d) None of the above

Last Answer : Ans: (d)

Hailstorms are caused due to – (1) condensation (2) convection (3) sublimation (4) freezing

Description : Hailstorms are caused due to – (1) condensation (2) convection (3) sublimation (4) freezing

Last Answer : (4) freezing Explanation: In a hailstorm, small ice particles that form above the freezing level (which occurs in all thunderstorms) collect either rain water or cloud water on them, forming a water ... updraft to carry them, or they get caught in a downdraft, and they finally reach the ground.

A landscape which is caused due to the fissure in the earth along which one side has moved down with reference to the other is known as – (1) Rift Valley (2) U Shaped Valley (3) V Shaped Valley (4) Hanging Valley

Description : A landscape which is caused due to the fissure in the earth along which one side has moved down with reference to the other is known as – (1) Rift Valley (2) U Shaped Valley (3) V Shaped Valley (4) Hanging Valley

Last Answer : (2) U Shaped Valley Explanation: A rift valley is a linear-shaped lowland caused due to the fissure in the earth along which one side moves down with reference to the other. It is commonly ... valley is formed on a divergent plate boundary, a crustal extension, a spreading apart of the surface.

Alcohol is used in manometers because (A) It has low vapour pressure (B) It is clearly visible (C) It has low surface tension (D) It can provide longer column due to low density

Description : Alcohol is used in manometers because (A) It has low vapour pressure (B) It is clearly visible (C) It has low surface tension (D) It can provide longer column due to low density

Last Answer : Answer: Option D

What is a 'tornado'? (1) A very high pressure centre (2) A very low pressure centre (3) A very high ocean wave (4) A planetary wind

Description : What is a 'tornado'? (1) A very high pressure centre (2) A very low pressure centre (3) A very high ocean wave (4) A planetary wind

Last Answer : (2) A very low pressure centre Explanation: A tornado is a closed low pressure circulation which is marked by a violently rotating column of air that is in contact with both the surface of ... upper levels of the troposphere. The formation process of a low-pressure area is known as cyclogenesis.

Trade winds blow from the – (1) equatorial low pressure (2) polar high pressure (3) subtropical high pressure (4) subpolar low pressure

Description : Trade winds blow from the – (1) equatorial low pressure (2) polar high pressure (3) subtropical high pressure (4) subpolar low pressure

Last Answer : (3) subtropical high pressure Explanation: Wind flows outward down the pressure gradient away from the subtropical highs. As it does so, it encounters the Coriolis Effect caused by the rotation of the Earth ... move from east to west, and below the subtropical high winds move from west to the east.

Laterite soils are found in area where – (1) normal temperature and rain fall is less (2) temperature is high and rain fall is heavy (3) temperature is low and rain fall is nominal (4) temperature is high and rain fall is normal

Description : Laterite soils are found in area where – (1) normal temperature and rain fall is less (2) temperature is high and rain fall is heavy (3) temperature is low and rain fall is nominal (4) temperature is high and rain fall is normal

Last Answer : (2) temperature is high and rain fall is heavy Explanation: Laterites are soil types rich in iron and aluminium, formed in hot and wet tropical areas. Nearly all laterites are rusty-red ... produces a wide variety in the thickness, grade, chemistry and ore mineralogy of the resulting soils.

Indian monsoon is marked by seasonal shift caused by: [Teachers' Exam 1994] (a) differential heating of land and sea (b) cold winds of Central Asia (c) great uniformity of temperature (d) None of these

Description : Indian monsoon is marked by seasonal shift caused by: [Teachers' Exam 1994] (a) differential heating of land and sea (b) cold winds of Central Asia (c) great uniformity of temperature (d) None of these

Last Answer : Ans: (a)

Clouds float in the atmosphere because of their – (1) low pressure (2) low density (3) low viscosity (4) low temperature

Description : Clouds float in the atmosphere because of their – (1) low pressure (2) low density (3) low viscosity (4) low temperature

Last Answer : (2) low density Explanation: The key to why clouds float is that the density of the same volume of cloud material is less than the density of the same amount of dry air. Just as oil floats on water ... it is less dense, clouds float on air because the moist air in clouds is less dense than dry air.

The clouds float in the atmosphere because of their low: (1) temperature (2) velocity (3) pressure (4) density

Description : The clouds float in the atmosphere because of their low: (1) temperature (2) velocity (3) pressure (4) density

Last Answer : (4) density Explanation: Clouds generally form, survive and grow in air that is moving upward. Rising air expands as the pressure on it decreases, and that expansion into thinner, high-altitude air causes cooling.

Clouds float in the atmosphere because of their (1) low pressure (2) low density (3) low viscosity (4) low temperature

Description : Clouds float in the atmosphere because of their (1) low pressure (2) low density (3) low viscosity (4) low temperature

Last Answer : low density

The different colours of different stars are due to the variation of – (1) temperature (2) pressure (3) density (4) radiation from them

Description : The different colours of different stars are due to the variation of – (1) temperature (2) pressure (3) density (4) radiation from them

Last Answer : (1) temperature Explanation: Shortly after blackbody radiation was understood, it was noticed that the spectra of stars look extremely similar to blackbody radiation curves of various temperatures, ... and that the colour variation of stars is a direct consequence of their surface temperatures.

The different colours of different stars are due to the variation of (1) temperature (2) pressure (3) density (4) radiation from them

Description : The different colours of different stars are due to the variation of (1) temperature (2) pressure (3) density (4) radiation from them

Last Answer : temperature

M6nsoon retreat is marked by: [UP PCS 1995] 1. clear sky 2. high pressure conditions at the Bay of Bengal 3. rise in temperature on land (a) 1 only (b) 1 and 2 (c) 2 and 3 (d) 1, 2 and 3

Description : M6nsoon retreat is marked by: [UP PCS 1995] 1. clear sky 2. high pressure conditions at the Bay of Bengal 3. rise in temperature on land (a) 1 only (b) 1 and 2 (c) 2 and 3 (d) 1, 2 and 3

Last Answer : Ans: (a)

The boiling point of water decreases at higher altitudes is due to – (1) low temperature (2) low atmospheric pressure (3) high temperature (4) high atmospheric pressure

Description : The boiling point of water decreases at higher altitudes is due to – (1) low temperature (2) low atmospheric pressure (3) high temperature (4) high atmospheric pressure

Last Answer : (2) low atmospheric pressure Explanation: At higher altitudes, the air pressure is decreased, which forces water's boiling point to lower. The air pressure decreases with altitude because of the ... of air. The lowered boiling point of water requires an increase in cooking times or temperature.

Why is it difficult to breathe at higher altitudes? (1) Due to low air pressure (2) Due to low temperature (3) Due to ozone (4) Due to high humidity

Description : Why is it difficult to breathe at higher altitudes? (1) Due to low air pressure (2) Due to low temperature (3) Due to ozone (4) Due to high humidity

Last Answer : (1) Due to low air pressure Explanation: Low air pressure is usually the most significant limiting factor in high mountain regions. The percentage of oxygen in the air at 3.2 km is ... high altitudes, the lower air pressure makes it more difficult for oxygen to enter our vascular systems.

Flooding in a column results due to (A) High pressure drop (B) Low pressure drop (C) Low velocity of the liquid (D) High temperature

Description : Flooding in a column results due to (A) High pressure drop (B) Low pressure drop (C) Low velocity of the liquid (D) High temperature

Last Answer : (A) High pressure drop

Berry splitting in citrus and strawberry is due to a. High temperature b. Low moisture c. High sunlight d. High air pressure

Description : Berry splitting in citrus and strawberry is due to a. High temperature b. Low moisture c. High sunlight d. High air pressure

Last Answer : High temperature

The boiling point of water decreases at higher altitudes is due to (1) low temperature (2) low atmospheric pressure (3) high temprature (4) high atmospheric pressure

Description : The boiling point of water decreases at higher altitudes is due to (1) low temperature (2) low atmospheric pressure (3) high temprature (4) high atmospheric pressure

Last Answer : low atmospheric pressure

Why is it difficult to breathe at higher altitudes? (1) Due to low air pressure (2) Due to low temperature (3) Due to ozone (4) Due to high humidity

Description : Why is it difficult to breathe at higher altitudes? (1) Due to low air pressure (2) Due to low temperature (3) Due to ozone (4) Due to high humidity

Last Answer : Due to low air pressure

Among liquids, water has a comparatively high value of thermal conductivity, due to its (A) Low density (B) High viscosity (C) Partial ionisation (D) Dense structure

Description : Among liquids, water has a comparatively high value of thermal conductivity, due to its (A) Low density (B) High viscosity (C) Partial ionisation (D) Dense structure

Last Answer : (C) Partial ionisation

Spherical shape of mercury droplets is due to its (A) High viscosity (B) Low surface tension (C) High density (D) High surface tension

Description : Spherical shape of mercury droplets is due to its (A) High viscosity (B) Low surface tension (C) High density (D) High surface tension

Last Answer : Option D

A ?black hole? is a body in space which does not allow any radiation to come out. This property is due to its (a) Very small size (b) Very large size (c) Very high density (d) Very low density

Description : A ?black hole? is a body in space which does not allow any radiation to come out. This property is due to its (a) Very small size (b) Very large size (c) Very high density (d) Very low density

Last Answer : Ans: ( c ) Very high density