Science Fill in the blank

CFCs are carbon compounds having both Fluorine and chlorine.
Explanation:
Chlorofluorocarbons are organic compounds that have carbon, fluorine and chlorine.

Surface temperature of moon varies from -190° to 110°.
Explanation:
It is 110 degree at day and minus 170 at night. Moon doesn’t have an atmosphere & water vapour to diminish sun at day and retain heat at night. So either moon has 100% solar energy or completely lacks it.

Humus makes soil porous and allows water and air to peneterate deep underground.
Explanation:
Humus is organic due to large content of organic carbon. It retains moisture in the soil and loosens the soil thus allowing water and air to penetrate deep underground thus increasing the soil organisms which provide nutrients to the plant.

Earthworms are Detritivores which are involved in paedogenesis.
Explanation:
Paedogenesis is decomposition by bacteria and fungi during which organic material is broken leading to humification and mineraliation. Earthworm is a detritivore that consumes organic matter and add excretory nitrogen to soil.

Atmosphere of Earth is rich in Nitrogen.
Explanation:
Atmosphere of earth is 78% nitrogen, 21% oxygen, 0.9% argon and 0.3% carbon dioxide.