contestada

Heat moves through the atmosphere through the process of

A. convection
B. conduction
C. radiation
D. refraction

Respuesta :

Answer: C. radiation

Explanation:

There are three modes of transfer:

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

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.  

Thus heat moves through the atmosphere through the process of radiation

Answer:

Option (A)

Explanation:

In the atmosphere, the convection of heat takes place. The heat energy is trapped more abundantly and tightly near the surface of the earth, as a result of which the air near the earth's surface gets heated up and becomes less dense. Due to this, the warm air rises upward and as it moves upward, it slowly cools due to the decreasing temperature. It then forms a low-pressure zone and the denser air falls back. This process takes place repeatedly, as a result of which convection cells are formed. This carries the heat upward and downward in the atmosphere.

Thus, the correct answer is option (A).