Question

Which of the following is the best example of heating by conduction on Earth

A. light from the sun, strikes the surface of Earth and heat it up.

B. Air is heated one a comes into contact with the hot surface of Earth.

C. Water warm at the equator carries he went in flows to the North and South Poles.

D. heat energy travels across empty spaces from the Sun to Earth.

Answer 1

The answer is A

Step-by-step explanation:

It wouldn't be B because it uses convection (Heat travels through a liquid or gas). In Bs case the heat travels through air.

It wouldn't be C because it also uses convection (Heat travels through a liquid or gas). Opposite from B the heat travels through liquid.

Finally it wouldn't be D because it travels through empty space, which uses electromagnetic radiation (Radiation is the transfer of heat energy through space). The heat travels through space not by direct contact.

:

The light makes contact with Earth. Usually Conduction is through Direct Contact, but here it is light touching Earth using radiation. So, here you see two types of heat transfer radiation and conduction.

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