Question

1. Choose the correct answer:- [0.5x10=5]

i. __________ percent mass of human body is

water.

a. 50 b. 60 c.70 d. 80

ii. Animals depend on _______________ directly or indirectly for

food.

a. Insects b. Plants c. Birds d. Humans

iii. The silkworm feed on___________

leaves.

a. Neem b. Mulberry c. Peepal d. Banyan.

iv. Soaking of jute plants in water is ccalled

-

a. Wetting b. Sedimentation c. Retting d. Shearing.

v. Deficiency of iodine in the diet leads to

a. Kwashiorkor b. Marasmus c. Goitre d. Beri beri.

vi. Water is miscible with-

a. Vinegar b. oil c. glycerine d. milk.

vii. Common salt and seafood are rich source of

a.Sodium b. Iron c. Calcium d. Iodine.

viii. Which of the following will float on the water?

a. Iron nail b. Stone c. Coin d.Feather.

ix. Jute grows well in which type of soil?

a. Black soil b. Alluvial soil c. Loamy soil d. Sandy soil.

x. The materials through which objects can be seen but not clearly are known as-

a. Transparent objects. b.Translucent object

c. Soluble object d. Opaque objects.

2. Fill in the blanks :- [0.5x10=5]

i. Proteins are ___________ of the body.

ii. Deficiency of vitamin _____________ causes night blindness.

iii. Anything that has mass and occupies space is called__________.

iv. We can feel the presence of a _________ but cannot touch it.

v. Heating destroys vitamin _________ very easily.​

Answer 1

Answer:

1) 70%

2) plants

3) mulberry

4)retting

5) goitre

6) ___

7) sodium

8) feather

9) alluvial soil

10) translucent object

2) Fill in the blanks___

1) complex molecules

2) vitamin A

3)matter

4) I think light

5) vitamin C