What are the examples of people that are not economically active​

Explanation:

Economically inactive people are simply those who are neither employed nor unemployed; they're not in paid work, but they're also not looking for a job or available to start work. You might be economically inactive for a number of reasons, such as being retired, a student or too ill to work.

radiation warms things up temp rises convection currents air circ windy weather

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid