General Science MCQs Part IV

41 What is Humus?

Decomposed animal and vegetable matter

42 In case of oxidation one thing is common. It produces ___________ and gives it off. This is an extremely useful thing.

Heat

43 What is the blackboard chalk made of?

Lime

44 The three main classes of human foods are

Fats, Carbohydrates, Vitamins

45 The chemical process within the body connected with the breaking and building of organic compounds is known as

Metabolism

46 Fungi are called simple plants because they

Do not have root, stem and leaves

47 Mushrooms are

Fungi

48 When our body perspire, it

Cools the body

49 In the body, salt is eliminated mainly by

Kidneys

50 A defect in lens due to the dispersion of light is called

Astigmatism

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