The sun continuously radiates heat and light energy in all the directions known as:

1. Energy radiation
2. Solar radiation
3. Sun radiation
4. Heat and light radiation

The amount of solar energy received by the earth is called:

1. Radiation
2. Insolation
3. Greenhouse radiation
4. Precipitation radiation

When both incoming radiation and outgoing radiation are balanced, it is called:

1. Convection
2. Terrestrial radiation
3. Heat balance
4. Conduction

Conduction : ……………. :: Convection : …………….

1. direct contact; circulatory motion
2. circulatory motion, direct contact
3. absorption, transference
4. transference, absorption