EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Conduction of heat upward from a hot surface
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Convection from a hot surface
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Absorption of infrared energy that has been radiated from the surface
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Heat energy from the earth’s interior
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Detailed explanation-1: -Since air is a poor conductor, most energy transfer by conduction occurs right near Earth’s surface. Conduction directly affects air temperature only a few centimeters into the atmosphere. During the day, sunlight heats the ground, which in turn heats the air directly above it via conduction.
Detailed explanation-2: -earth after being heated itself becomes a radiating body and it radiates energy to the atmosphere in long wave form. This energy heats up the atmosphere from below.
Detailed explanation-3: -As the molecules heat and move faster, they are moving apart. So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.
Detailed explanation-4: -Conduction: It is a process in which heat flows from objects with higher temperatures to objects with lower temperatures. Convection: Vertical heating of the atmosphere is known as convection. Advection: The transfer of heat through the horizontal movement of air is called advection.