Description : Match List I (Layers of Atmosphere) and List II (Characteristics) and select the correct answer using the code given below. L ist I L i st I I (L ayer of (Char acter ist ics) At mospher e) A. Ionosphere I. Contains Ozone B. ... D-III (3) A-II, B-III, C-I, D-IV (4) A-III, B-I, C-IV, D-II
Last Answer : 2) A-II, B-I, C-IV, D-III
Description : There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called ... is about __________ °C/km. (A) 0.05 (B) 1 (C) 6.5 (D) 15
Last Answer : (C) 6.5
Description : Which one the following is a correct statement? (A) The vertical section of the soil extending into the parent material, is called profile (B) The layers of the soil parallel to the earth ... horizons (C) The transitional layer between two adjoining horizons is called boundary (D) All of these
Last Answer : Answer: Option D
Description : Which among the following is the correct sequence of the various layers of the Atmosphere from the Earth's surface? A. Ionosphere, Mesosphere, Stratosphere, Troposphere B. ... . Troposphere, Stratosphere, Mesosphere, Ionosphere (Answer) D. Troposphere, Ionosphere, Stratosphere, Mesosphere
Last Answer : C. Troposphere, Stratosphere, Mesosphere, Ionosphere (Answer)
Description : The vertical section of soil showing the various layers from surface to unaffected parent material is known as — a. Horizon b. Soil profile c. Pedon d. None of these
Last Answer : b. Soil profile
Description : Pick up the correct statement from the following: (A) The precipitation during its travel in atmosphere dissolves certain gases (B) Rain water which percolates through the ground, is free from ... water may dissolve minerals and salts present in the earth's layers (D) All the above
Last Answer : (D) All the above
Description : The jet-stream lies between which two layers of th earth's atmosphere? w) thermosphere and ionosphere x) mesosphere and thermosphere y) troposphere and stratosphere z) stratosphere and mesosphere
Last Answer : ANSWER: Y -- TROPOSPHERE AND STRATOSPHERE
Description : Pick out the wrong statement. (A) In process heat exchangers, saturated steam is preferred over the superheated steam (B) The maximum is the emissive power of a surface at a temperature T1 ... under natural convection conditions, the velocity profile in air, normal to the plate, exhibits a maximum
Last Answer : (B) The maximum is the emissive power of a surface at a temperature T1 occurs at a wavelength of λ1 . If the surface temperature is halved, the maximum in the emissive power would occur at a wavelength of 0.5 λ1
Description : Our atmosphere is divided into layers. (1) Two (2) Three (3) Four (4) Five
Last Answer : (4) Five Explanation: Earth has five primary layers, which are the troposphere, stratosphere, mesosphere, thermosphere and exosphere. From the Earth upwards, those layers are: Troposphere: 0 to 12 km: Stratosphere: 12 ... : 50 to 80 km; Thermosphere: 80. to 700 km; Exosphere: 700 to 10,000 km.
Last Answer : Five
Description : Flash floods are caused when (A) the atmosphere is convectively unstable and there is considerable vertical wind shear (B) the atmosphere is stable (C) the atmosphere is convectively unstable with no vertical windshear (D) winds are catabatic
Last Answer : (A) the atmosphere is convectively unstable and there is considerable vertical wind shear
Description : Density of the earth's atmosphere is highest in the – (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Ionosphere
Last Answer : (1) Troposphere Explanation: Over 99% of the mass of the earth's atmosphere is contained in two layers: the troposphere and the stratosphere. Most of the earth's atmosphere (80 to 90%) is found in the ... . This layer, where the earth's weather occurs, is within about 12 km of the earth's surface.
Description : Density of the earth’s atmosphere is highest in the (1) Troposphere (2) Stratosphere (3) Mesosphere (4) Ionosphere
Last Answer : Troposphere
Description : What prevents the earth’s atmosphere from drifting away into space? A. Gravity (Answer) B. Ozone layer C. Troposphere D. Ecosystem
Last Answer : A. Gravity (Answer)
Description : Soil consists of different layers which are often known as ______ a. Slab b. Profile c. Horizon d. Sphere
Last Answer : b. Profile
Description : Pick up the correct statement from the following: (A) In order to check up the average depth of excavation, 'Dead man s' are left at the midwidths of borrow pits (B) The earthwork ... embankment includes the formation of correct profile and depositing the soil in layers (D) All the above
Description : Earth is divided into following three layers? a. Crust, Mountains, Oceans b. Crust, Mantle, Trenches c. Trenches, Mountains, Core d. Crust, Mantel, Core (Answer)
Last Answer : d. Crust, Mantel, Core (Answer)
Description : Sun is divided into --- main layers. A. 2 B. 3 (Answer) C. 4 D. 5
Last Answer : B. 3 (Answer)
Description : In which two layers of the atmosphere does temperature increase as altitude increase?
Last Answer : stratosphere and thermosphere
Description : Supercharging is the process of a. supplying the engine with air at a density greater than the density of the surrounding atmosphere b. providing forced cooling air c. injecting excess fuel d. raising the exhaust pressure
Last Answer : ANSWER a. supplying the engine with air at a density greater than the density of the surrounding atmosphere
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.
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.
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
Description : The lowest region of the earth’s atmosphere comes between the earth and stratosphere. what is this region’s name? A. Ionosphere B. Troposphere (Answer) C. Stratosphere D. Mesosphere
Last Answer : B. Troposphere (Answer)
Description : The atmosphere near the earth's surface is heated from below. Which of the following does not significantly contribute to this heating -----------? A. Conduction of heat upward from a ... infrared energy that has been radiated from the surface D. Heat energy from the earth's interior (Answer)
Last Answer : D. Heat energy from the earth’s interior (Answer)
Description : Second layer of Earth’s atmosphere is-----? A. Stratosphere (Answer) B. Mesosphere C. Troposphere
Last Answer : A. Stratosphere (Answer)
Description : Border line which separates outer space from Earth’s atmosphere is known as------? A. Durand line B. Space line C. Venus line D. Karman line (Answer)
Last Answer : D. Karman line (Answer)
Description : The sky appears blue because the earth’s atmosphere -----? A. Scatters blue light (Answer) B. Reflects blue light C. Transmits blue light D. Has actual blue cover
Last Answer : A. Scatters blue light (Answer)
Description : Which of the following pairing is incorrect? (1) Hygrometer Water vapour content of the atmosphere (2) Lactometer Specific gravity of liquids (3) Anemometer Speed of the wind (4) Seismograph Earthquakes
Last Answer : Lactometer Specific gravity of liquids
Description : Read the following passage and answer the question given below. Little is known about the elusive section of the earth's atmosphere known as the mesophere. Located between the stratosphere and the ... primarily describes the mesosphere as (a) turbulent (b) opaque (c) unfamiliar (d) anarchic
Last Answer : (c) unfamiliar
Description : The temperature at which water boils depends mainly on ------? A. Air temperature B. Relative humidity C. Air pressure (Answer) D. Air density E. The specific heat of air
Last Answer : C. Air pressure (Answer)
Description : The vertical movement of air is termed as – (1) wind (2) air current (3) air turbulence (4) air mobility
Last Answer : (2) air current Explanation: An updraught or downdraught is the vertical movement of air as a weather related phenomenon. Better known as air current, they can be caused by differences in temperature ... lighter." Rising air is associated with turbulence as it creates a low pressure on the surface.
Description : The vertical movement of air is termed as (1) wind (2) air current (3) air turbulence (4) air mobility
Last Answer : air current
Description : The cause for the Tsunami, as deduced by the seismologists, is – (1) Gravitational pull of the moon (2) Low pressure trough in the ocean (3) Deformation of sea floor and vertical displacement of water (4) Sudden change in the monsoon wind
Last Answer : (3) Deformation of sea floor and vertical displacement of water Explanation: Earthquakes, volcanic eruptions and other underwater explosions (including detonations of underwater nuclear devices), landslides, ... the sea, the water above the deformed area is displaced from its equilibrium position.
Description : The cause for the Tsunami, as deduced by the seismologists, is (1) gravitational pull of the moon (2) low pressure trough in the ocean (3) deformation of sea floor and vertical displacement of water (4) sudden change in the monsoon wind
Last Answer : deformation of sea floor and vertical displacement of water
Description : The mirage is seen in a hot desert because of (a) The density of the layer of air increases with altitude (b) The density of the layer of air decreases with altitude (c) The reflection of light from the layers of sand (d) The total internal reflection from sand
Last Answer : Ans:(a)
Description : Presence of plants arranged into well defined vertical layers depending on their height can be seen best in (a) tropical rainforest (b) grassland (c) temperate forest (d) tropical savannah.
Last Answer : (a) tropical rainforest
Description : Presence of plants arranged into well defined vertical layers depending on their height can be seen best in: (1) Tropical Rain Forest (2) Grassland (3) Temperate Forest (4) Tropical Savannah
Last Answer : (1) Tropical Rain Forest
Description : Satellites burn off during re-entry to earth's atmosphere, because of the (A) Combustion with air (B) Gravitational pull by earth (C) Friction with earth's atmospherch
Last Answer : Option C
Description : Satellites burn off during re-entry to earth's atmosphere, because of the (A) Combustion with air (B) Gravitational pull by earth (C) Friction with earth's atmosphere (D) Loss in weight of the satellite
Description : How do convection cells in earth's atmosphere cause high-and low- pressure belts?
Last Answer : The convection cells radiate heat.
Description : In the earth’s atmosphere, what changes in the atmospheric pressure?
Last Answer : Decreases with height
Description : The earth’s ------ is divided into 15 major plates of various sizes A. Mesosphere B. Stratosphere C. Lithosphere (Answer) D. None
Last Answer : C. Lithosphere (Answer)
Description : If there is no carbon dioxide in the earth's atmosphere, the temperature of earth's surface would be – (1) dependent on the amount of oxygen in the atmosphere (2) higher than the present (3) less than the present (4) the same
Last Answer : (3) less than the present Explanation: If there is no carbon dioxide in the earth's atmosphere, the temperature of earth's surface would be less than the present because carbon emission in the atmosphere is one of the major causes of global warming.
Description : Pick out the wrong statement. (A) Biological oxygen demand (B.O.D.) value of a sewerage sample is always lower than its chemical oxygen demand (C.O.D.) value (B) Environmental pollution by ... in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere
Last Answer : (D) The characteristic of a green house body is that it allows the long wavelength incoming solar radiation to come in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere
Description : Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyll and haemoglobin breakdown of some animals, beyond TLV (>50 ppm) (A) Acts as a green house gas thereby raising earth's ... (B) Causes asphyxia (C) Causes increase in sea level (D) Enhances the green house effect
Last Answer : (B) Causes asphyxia
Description : Pick out the wrong statement. (A) The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere (B) ... ) The earth's atmosphere is an envelope of gases extending upto a height of about 200 kms
Last Answer : (A) The concentric layer in atmosphere which contains about 70% of the total mass of atmosphere and characterised by a steady decrease in temperature is called stratosphere