Q. In dry regions, the leaf size of a tree becomes smaller. It is so to
1) reduce transpiration
2) reduce metabolism maintain natural growth
3) maintain natural growth
4) protect plant from animals
Q. When we eat something we like, our mouth waters. This is actually not water fluid secreted form
1) salivary glands
2) nasal glands
3) oval epithelium
4) tongue
Q. Which one among the following groups of items contains only biodegradable items?
1) Wood, Grass, Leather
2) Wood, Grass, Plastic
3) Fruit peels, Lime juice, China clay cup
4) Lime juice, Grass, Polystyrene
Q. Dog bite can cause rabies. Which among the following other animals can also cause rabies.
1) Bat
2) Donkey
3) Horse
4) Crocodile
Q. Which of the following diseases are transmitted from one person to another?
1. Aids
2. Cirrhosis
3. Hepatitis
4. Syphilis
Select the correct answer using the code given below:
1) 1, 3, 4 only
2) 1, 2, 3 and 4
3) 1 and 2 only
4) 2, 3 and 4 only
Q. Due to contraction of eyeball, a longsighted eye can see only
1) father objects which is corrected by using convex lens
2) father objects which is corrected by using concave lens
3) nearer objects which is corrected by using convex lens
4) nearer objects which is corrected by using concave lens
Q. White blood cells act
1) as a defence against infection
2) as source of energy
3) for clotting blood
4) as a medium for oxygen transport from lung to tissues
Q. Insects that can transmit diseases to humans are referred to as
1) Vectors
2) Carriers
3) Reservoirs
4) Incubators
Q. Which one among the following statements about stomach is not correct?
1) Stomach acts as a temporary reservoir
2) Stomach mixes food with gastric juice
3) Stomach secretes lipase and amylase in gastric juice
4) Rate of stomach emptying depends on the type of food
Q. Which one of the following organs break fat to produce cholesterol?
1) Intestine
2) Liver
3) Lungs
4) Kidneys
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