For a person to loose weight, is it more effective to exercise or to cut down on the intake of food. Give logical reason.

Why the cooked food spoll soon but not uncooked food. Give your reasons.

Na_(2)SO_(4) is more effective than NaCl in the coagulation of Fe(OH)_(3) , sol. Give reason.

Out of BaCl_2 and KCl which one is more effective in causing coagulation of negatively charged colloidal sol. Give reason.

Out of BaCl_(2) and KCl, which is more effective in cauding coagulation of a negatively charged colloidal sol ? Give reason.

Compound eyes are more effective than vertebrate eye. Give reason

Regular exercise help in toning the muscles. Give reasons.

Give a reason why completion of each period is logical

What is a long-term effect of cutting down larger areas of rainforests?

The weight of a person in moon is only 1/6 of that on the Earth. Give reason.