Question

Which of these statements does not refer to radiation

A. some of this energy is is reflected off earths atmosphere

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

C.sunlight travels through space without aid of fluids or solids

D.land and ocean absorb and re-emit heat from the sun

Please help quick

Answer 1

Answer: B.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 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.

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

Answer 2

The answer is: B.warm air rises and takes heat with it eventually it cools and sinks.

Solar radiation is the source of electric energy.

The thermal radiation is electromagnetic radiation generated by the thermal motion of charged particles in matter.

Heat spontaneously flows from a hotter to a colder body.

The inner core is the central region of the Sun and all solar energy is produced in the core by nuclear fusion.

Radiative zone is around the inner core and in this area energy is transported by radiation.