Give reason for the following
All life on Earth is supported by Photosynthesis.

Give reasons for the following:

Give reasons for the following:

Give reasons for the following :

1st life on earth was

Give reasons for the following: (a). Alkanline earth metals cannot be obtained by chemical reduction. (b). Alkaline earth metals have stronger tendancy to form complexes than alkai metals. (c ). Magnesium nitride on reacting with water gives ammonia, but magnesium chloride does not give HCI on reacting with water.

Give reason for the following All the food chains begin with green plants.

Give reasons for the following: All solutions are homogenous mixtures of a solute in a solvent.

Give reasons for the following: Gases exert pressure in all directions

Give reason for the following. Weight of an object on Jupiter is more than that on the Earth.

Give reasons for the following: All members of the homologous series share a general molecular formula.