Give biological reason for the following statements :
Plants growing in fertilized soil are often found to wilt if the soil is not adequately watered.

Plants growing in saline soil are called

Plants growing in extreme cold soil are:

Give biological reason for the following statement The birth rate in India is very high.

Give biological reason for the following statements : In some xerophytes, leaves are modified into spines.

Give biological reason for the following statement Cutting of trees should be discouraged.

Give biological explanations for the following statements: Leguminous plants increase soil fertility.

Give biological reason for the following statement Education is very important for population control.

Give suitable biological reasons for the following statements : Acid rain is harmful to the environment.

Account for the following briefly : Herbaceous plants growing in well watered soils are found to wilt on a hot day.

Give suitable biological reasons for the following statement : Root hairs become flaccid and droop when excess fertilizers are added to the moist soil around them .