Questions

The alternation of wet and dry seasons leads to the leaching away of the siliceous matter of the rocks and the formation of laterite soils. It has been observed that there is a general relationship between altitude and the chemical composition of laterite soils. The soils on the higher areas are generally more acidic than on the low lying areas.

The main component of bones and teeth is Calcium Phosphate.

Nitrogenous base: A molecule that contains nitrogen and has the chemical properties of a base.

DNA and RNA ::

The nitrogenous bases in DNA are

Adenine (A),

Guanine (G),

Thymine (T), and

Cytosine (C).

Whereas the nitrogenous bases in RNA are the same, with one exception:

Adenine (A),

Guanine (G),

Uracil (U), and

Cytosine (C).