Ozone Protection Day celebrated on ____

Both_____&_____ constituents are present in the soil.

_______is layer formed on soil due to the decomposition of dead plants & animals.

True or false

Land and soil are the same thing

The elements available in the nature which fulfil the basic needs of living things are called_____________

____ is a universal solvent

The proportion of humus in the upper layer of good fertile soil is about_______

The layer of ozone gas absorbs _____rays that come from the sun to the earth.

______is used in decorative lights