EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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When heat transfers through waves.
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When heat transfers from objects that are touching.
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a hot liquid or air that expands, becomes less dense, and rises or becomes more dense, and sinks.
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Heat traveling from the sun
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Detailed explanation-1: -Convection is the transfer of heat by the movement of a fluid (liquid or gas) between areas of different temperature.
Detailed explanation-2: -convection, process by which heat is transferred by movement of a heated fluid such as air or water. Natural convection results from the tendency of most fluids to expand when heated-i.e., to become less dense and to rise as a result of the increased buoyancy.
Detailed explanation-3: -Convection: Convection is a method of heat transfer by mass motion of a fluid such as air or water when the heated fluid is caused to move away from the source of heat, carrying energy with it. Convection above a hot surface occurs because hot air expands, becomes less dense, and rises.
Detailed explanation-4: -Convection is the process of heat transfer by the bulk movement of molecules within fluids such as gases and liquids. The initial heat transfer between the object and the fluid takes place through conduction, but the bulk heat transfer happens due to the motion of the fluid.
Detailed explanation-5: -Answer and Explanation: The best description of a convection current is that e. it is the process in which warm material expands and rises while cool material contracts and falls..