Question

Select the appropriate answer.

1. Which of the following is a biotic component ?

(a) Cloud (b) Mimosa (c) Aeroplane (d) Train

2. How many pairs of leg does a cockroach have ?

(a) One (b) Two (c) Three (d) Four

3. Which part of a flower protects the petal in bud stage ?

(a) Sepal (b) Petal (c) Stamen (d) Pistil

4. Which of the following is an irreversible change ?

(a) Filling air in a balloon (b) Melting of ice

(c) Burning of paper (d) making a toy aeroplane from paper

5. Which of the following methods is used to separate stones from grains ?

(a) landpicking (b) Threshing (c) Evaporation (d) Decantation

6. Which of the following floats on water ?

(a) Iron (b) Sand (c) Sugar (d) ice

7. Which of the following is shiny in appearance ?

(a) Plastic (b) Copper (c) Paper (d) Leather

8. The process of making yarn from cotton fibres is called _____

(a) ginning (b) weaving (c) spinning (d) knitting

9. Deficiency of Vitamin B leads to which disease ?

(a) Saurvy (b) Beriberi (c) Rickets (d) Goiter

10. Which of the following is neither a plant product nor an animal product ?

(a) Sugar (b) Money (c) Common salt (d) Meat​

Answer 1

Answer:

1. cloud
2. four
3. sepal
4. burning of paper
5. threshing
6. ice
7. copper
8. weaving
9. rickets
10. money

Answer 2

1.Mimosa

2.Three

3.Sepal

4.Burning of paper

5.Handpicking

6.Iron

7.Copper

8.spinning

9.beri beri

10.Common salt