Question

Which statement does not refer to radiation? Some of this energy is reflected off Earth's atmosphere. Land and ocean absorb and re-emit heat from the sun. Warm air rises and takes heat with it; eventually it cools and sinks. Sunlight travels through space without the aid of fluids or solids.

Answer 1

Answer:

warm air rises and takes heat with it eventually it cools and sinks

Explanation:

There are three modes of heat transfer:

1. Conduction: This type of heat transfer happens when there is direct contact between the two objects.

2.  Convection: This type of heat transfer happens when there is a movement of fluid (liquid or gas) in which convection currents are produced due to the movement of hot fluid upwards and cold fluid downwards. This happens as the density of hot fluid decreases and thus it moves upwards.

3. Radiation: This type of heat transfer happens when there is direct transfer of energy through space.

Warm air rises and takes heat with it eventually it cools and sinks  is an example of convection and not radiation.

Answer 2

Answer:

C. Warm air rises and takes heat with it; eventually it cools and sinks.

Explanation:

1.03 Quiz: Three Kinds of Heat Transfer

I am in K12