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Learn BANK PO MCQs with answers [Page 1 of Department 70]
3) Excess carbon dioxide in the atmosphere due to pollution will cause
(A) Earth's temperature to rise
(B) Earth's temperature to fall
(C) No change in earth's temperature
(D) Increase in ultra-violet radiation reaching the earth
Correct Answer - Option
(A)
Explanation :
Excess carbon in the atmosphere warms the planet. when carbon dioxide concentrations rise, air temperatures go up, and more water vapor evaporates into the atmosphere which then amplifies greenhouse heating.
4) Atmospheric pressure exerted on earth is due to ________
(A) Gravitational pull of the earth
(B) Rotation of earth
(C) Revolution of earth
(D) Uneven heating of earth
Correct Answer - Option
(A)
Explanation :
Atmospheric pressure exerted on earth is due to gravitational pull of the earth. The air around you has weight, and it presses against everything it touches. That pressure is called atmospheric pressure, or air pressure.
5) Which one of the following statements is correct?
Hurricanes ________
(A) Form at the equator
(B) Are not as large as tornadoes
(C) Develop over warm ocean areas
(D) Tend to intensify when they move over land surfaces
Correct Answer - Option
(C)
Explanation :
Only tropical cyclones that form over the Atlantic Ocean or eastern Pacific Ocean are called "hurricanes." Tropical cyclones are like giant engines that use warm, moist air as fuel. That is why they form only over warm ocean waters near the equator. The warm, moist air over the ocean rises upward from near the surface.
Orographic precipitation or Rain produced when moist air is lifted as it moves over a mountain range. As the air rises and cools, orographic clouds form and serve as the source of the precipitation, most of which falls upwind of the mountain ridge. Some also falls a short distance downwind of the ridge and is sometimes called spillover. On the lee side of the mountain range, rainfall is usually low, and the area is said to be in a Rain Shadow.
9) The monsoon has well-developed cycle in ________
(A) South and South East Asia
(B) North Australia
(C) East United States
(D) Africa
Correct Answer - Option
(A)
Explanation :
The monsoon has well-developed cycle in South and South East Asia. The monsoon through axis experiences considerable day to day variation in its position, which has a vital bearing on the monsoon rainfall distribution in the region.
10) A layer in the Earth's atmosphere called Ionosphere facilitates radio communication. Why?
1. The presence of ozone causes the reflection of radio waves to Earth.
2. Radio waves have a very long wavelength.
Which of the statements given above is fare correct?
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