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 : What is the cause of tidal waves? a) Wind b) Gravitational force of the moon on the sea c) Gravitational force of the sun on the sea d) Gravitational force of the earth on the sea
Last Answer : d) Gravitational force of the earth on the sea
Description : What occurs when an earthquake causes a sudden vertical change in the sea floor?
Last Answer : Need answer
Description : Which of the following are the main reasons for the origin of the south-west monsoon in India? 1. Development of a low pressure in north-west India 2. Deflection of trade winds 3. Arrival of cyclonic stream from the Pacific Ocean ... (a) I, II and III (b) I and II (c) II and III (d) III and IV
Last Answer : Ans: (b)
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.
Description : The main cause of Tsunami is : (1) Volcanoes (2) Cyclones (3) Earthquake on sea floor (4) Moon’s attraction
Last Answer : Earthquake on sea floor
Description : Earthquake that occur beneath the ocean floor can lead to a) Tsunami b)Flood c)Thunder d)Lightning
Last Answer : a) Tsunami
Description : The weight of an object at the poles is greater than at the equator. This is because (a) Of the shape of the earth (b) The attraction of the moon is maximum at the earth’s surface (c) The attraction of the sun is maximum at the earth’s surface (d) Gravitational pull is more at the poles
Last Answer : Ans:(d)
Description : Tides are caused by the gravitational pull of the – (1) Earth on the Moon (2) Earth on the Sun (3) Sun and Moon on the Earth (4) Moon on the Earth
Last Answer : (3) Sun and Moon on the Earth Explanation: Tide-generating forces (TGF) are a result of the gravitational attraction between the earth, the sun, and the moon and the centrifugal force ... 's surface creates a horizontal force directed towards the surface points closest and farthest from the moon.
Description : A satellite stay in orbit because the following two factors are balanced A. Satellite weight and speed B. Gravitational force and centrifugal force C. Centripetal force and speed D. Satellite weight and the pull of the moon and sun
Last Answer : B. Gravitational force and centrifugal force
Description : Tides are caused by the gravitational pull of the (1) Earth on the Moon (2) Earth on the Sun (3) Sun and Moon on the Earth (4) Moon on the Earth
Last Answer : Sun and Moon on the Earth
Description : A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to – (1) Outward pull on him (2) Inertia of motion (3) Change in momentum (4) Change in acceleration
Last Answer : (2) Inertia of motion Explanation: This is inertia of direction. It is the ability of body to be in a state of direction of motion for example sun holds planets in a fixed elliptical path .this ... at rest or moving with a constant velocity. It is the property possessed by a body to resist change.
Description : A passenger standing in a bus is thrown outward when the bus takes a sudden turn. This happens due to (1) Outward pull on him (2) Inertia of motion (3) Change in momentum (4) Change in acceleration
Last Answer : Inertia of motion
Description : Which is the most dangerous location for a tsunami hazard? a) A straight stretch of coast directly exposed to the open sea b) A rocky point protruding into the ocean in deep water c) A bay with a nice sandy beach at its end d) A small boat in the deep ocean
Last Answer : d) A small boat in the deep ocean
Description : The swing of a spinning cricket ball in air can be explained on the basis of – (1) Sudden change in wind direction. (2) Buoyancy of air. (3) Turbulence caused by wind. (4) Bernoulli's theorem.
Last Answer : (3) Turbulence caused by wind. Explanation: The main theory of swing bowling surrounded turbulent and laminar airflow. Laminar air separates from the surface of the ball earlier than turbulent flow air, ... towards the back; inducing a greater lift force on the turbulent airflow side of the ball.
Description : The swing of a spinning cricket ball in air can be explained on the basis of (1) Sudden change in wind direction. (2) Buoyancy of air. (3) Turbulence caused by wind. (4) Bernoulli’s theorem.
Last Answer : Turbulence caused by wind.
Description : Which one of the following is not the example of planetary winds? (1) Monsoon (2) Trade wind (3) Land and sea breezes (4) Chinook
Last Answer : (4) Chinook Explanation: "Chinook", originally meant a warming wind from the ocean into the interior regions of the Pacific Northwest (the Chinook people lived near the ocean, along the lower Columbia River) ... 20°C (50- 68°F) for a few hours or days, then temperatures plummet to their base level.
Description : Though there is no single theory which can explain the origin of south west monsoon, however it is believed that the main mechanism is the differential heating of land and sea during: (1) Winter months (2) Summer months (3) Cyclonic storms (4) South-west trade wind flow
Last Answer : (2) Summer months Explanation: According to the thermal theory, during the hot subtropical summers, the massive landmass of the Indian Peninsula heats up at a different rate than the ... relief, cooling adiabatically and leading to Orographic rains, better known as the southwest monsoon.
Description : Which one of the following is not the example of planetary winds ? (1) Monsoon (2) Trade wind (3) Land and sea breezes (4) Chinook
Last Answer : Chinook
Description : Shear stress causes (a) Deformation (b) Distortion (c) Displacement (d) None
Last Answer : (b) Distortion
Description : The tide produced in an ocean when the pull on the Earth by the Sun and the Moon is unidirectional is called?
Last Answer : Spring tide
Description : Which formula can be deduced from Newton's 3rd law ?
Last Answer : The law of conservation of momentum can be derived from Newton's 3rd law.
Description : Which of the following is a result of Surface tension? (1) Gravitational pull (2) Viscosity (3) Capillary action (4) Radiation
Last Answer : (3) Capillary action Explanation: Capillary action is the result of adhesion and surface tension. Adhesion of water to the walls of a vessel will cause an upward force on the liquid at the edges ... intact, so instead of just the edges moving upward, the whole liquid surface is dragged upward.
Description : Which of the following is a result of Surface tension ? (1) Gravitational pull (2) Viscosity (3) Capillary action (4) Radiation
Last Answer : Capillary action
Description : The tides in the sea are primarily due to – (1) the atmospheric effect of the Earth (2) the gravitational effect of Venus on the Earth (3) the gravitational effect of the Sun on the Earth (4) the gravitational effect of the Moon on the Earth
Last Answer : Explanation: A tide is the periodic rising and falling of Earth's ocean surface caused mainly by the gravitational pull of the Moon acting on the oceans. The height of tides varies somewhat with the phases ... higher because the Sun's tidal force adds to the Moon's. This is called "spring tide".
Description : Tides in the sea are caused by – (1) effect of Sun (2) effect of Moon (3) eombined effect of Moon and Sun (4) gravitational force of Earth and Sun
Last Answer : (3) eombined effect of Moon and Sun Explanation: Tide-generating forces (TGF) are a result of the gravitational attraction between the earth, the sun, and the moon and the centrifugal force due to the relative motions of the moon around the earth, and the earth around the sun.
Description : The tides in the sea are primarily due to (1) the atmospheric effect of the Earth (2) the gravitational effect of Venus on the Earth (3) the gravitational effect of the Sun on the Earth (4) the gravitational effect of the Moon on the Earth
Last Answer : the gravitational effect of the Moon on the Earth
Description : Tides in the sea are caused by (1) effect of Sun (2) effect of Moon (3) eombined effect of Moon and Sun (4) gravitational force of Earth and Sun
Last Answer : eombined effect of Moon and Sun
Description : Rajasthan revives very little rain because— (1) it is too hot (2) there is no water available and thus the winds remain dry (3) the monsoon fails to reach this area (4) the winds do not come across any barriers to cause the necessary uplift to cool the wind
Last Answer : (4) the winds do not come across any barriers to cause the necessary uplift to cool the wind Explanation: Rainfall decreases as winds move westwards up the Ganga Plains. Rajasthan ... range, the weather is characterized by relatively low wind velocity and high humidity with better rainfall.
Description : A sudden shaking of the earth lasting for a short time is known as a) lighting b)thunder c)earthquake d)Tsunami
Last Answer : c)earthquake
Description : Atmospheric pressure exerted on earth is due to : (1) rotation of earth (2) revolution of earth (3) gravitational pull (4) uneven heating of earth
Last Answer : (3) gravitational pull Explanation: The atmosphere is made up of gasses. Gasses are physical substances, and all physical substance has weight. The atmosphere is 25 miles thick, and that 25 miles ... square inch because of the gravitational pull. That's how atmosphere exerts pressure on the earth.
Last Answer : gravitational pull
Description : What scale do seismologists use to indirectly measure the magnitude of an earthquake?
Last Answer : What is the answer ?
Description : How do seismologists locate the epicenter of earthquakes?
Last Answer : To locate an earthquake, you need the data from at least three seismometer stations. The process is known as triangulation and is described in more detail below. The seismometer records the time when the P ... racing against each other. They both set off at the same time from the same place, but
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.
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 : A very low pressure centre
Description : What is meant by gravitational acceleration of the moon 1.63ms-2 ?
Last Answer : The gravitational acceleration of the moon is 1.63ms-2 . When an object is thrown upwards from the lunar surface, its velocity decreases by 1.63ms-2 per second. That is, the object is attracted to the center of the moon at an acceleration of 1.63ms-2 .
Description : What prominent feature of the ocean floor is missing from the Sea Floor Spreading Model at this point?
Last Answer : Mountains
Description : The vertical distance between the axis of the beam before and after loading at a point is called as _______ a. Deformation b. Deflection c. Slope d. None of above.
Last Answer : b. Deflection
Description : The swing of a spinning cricket ball in air can be explained on the basis of (a) Sudden change in wind direction (b) Buoyancy of air (c) Turbulence caused by wind (d) Bernoulli’s theorem
Description : The oil in the wick of an oil lamp rises up due to: (1) capillary action (2) low viscosity of oil (3) gravitational force (4) pressure difference
Last Answer : (1) capillary action Explanation: The oil in the wick of an oil lamp rises up due to capillary action.
Last Answer : capillary action
Description : The rupture and fractionation do not usually occur in the water column in vessel/tracheids during the ascent of sap because of (a) weak gravitational pull (b) transpiration pull (c) lignified thick walls (d) cohesion and adhesion
Last Answer : (d) cohesion and adhesion.
Description : The Langmuir adsorption isotherm is deduced using the assumption.
Last Answer : The Langmuir adsorption isotherm is deduced using the assumption. A. The adsorption isotherm is ... D. The adsorption takes place in multilayers.
Description : Which of the following statement is correct? A- The size and sequence of introns can be deduced from the cDNA sequence B- Restriction endonuclease can cleave ss and dsDNA both C- Restriction ... sequenceof a gene D- Amino acid sequence of a protein can be deduced from corresponding cDNA nucleotide
Last Answer : Amino acid sequence of a protein can be deduced from corresponding cDNA nucleotide
Description : Which of the following statement is correct? A- The size and sequence of introns can be deduced from the cDNA sequence B- .Restriction endonuclease can cleave ss and dsDNA both C- Restriction ... of a Gene D- Amino acid sequence of a protein can be deduced from corresponding cDNA nucleotide
Description : Has the giant whirlpool / swirl in ocean off Japan during tsunami been explained?
Last Answer : I heard the news team say that it was just like when you drain your tub. The water was going in the Earth that had opened up. You did hear that Japan the whole country moved 8 feet from it's old ... ? And that it caused a change in the vibration of the Earth and also in the rotation of our Planet.
Description : How many people were injured in the 2004 Indian Ocean Tsunami?
Last Answer : The third-largest earthquake ever recorded on a seismographoccurred on December 26th of 2004 just off the west coast ofSumatra, Indonesia. It triggered a series of tsunamis, killing~230,000 people and injuring ~125,000 people. Over 45,000 wentmissing, and over 1.7 million people were displaced.
Description : In which ocean did the 2004 tsunami occur?
Last Answer : The Indian ocean.