Question

1. The larvae of silkworm is called moth.

True
False

2. A carnivore with stripes on its body moves very fast while catching it’s prey. It is likely to be found  in -                                                      

a) polar regions
b) deserts  
c) oceans   
d) tropical rainforests

3. Air moves from region of low air pressure to region of high air pressure.

True

False

4.  The normal body temperature of human body is 36°C.

True

False

5. The largest gland of our body is -      

a) Pancreas  
b) Liver                                    c) c)Gall bladder
d) Stomach

6. Litmus is obtained from Lichens.

True

False

7. The mode of nutrition in which animals and other organisms take in food prepared by plants is-                                                     

a) Autotrophic nutrition  

b) Saprotrophic nutrition  

 c) Heterotrophic nutrition             

d) None of the above

 

8. Which one of the following places is unlikely to be affected by a cyclone ?                                                              

a) Chennai

 b) Puri  

c) Amritsar

 d) Mangalore

 

9.Silkworms feed on -            

 a) Mulberry leaves

 b) Mango leaves

 c) Banana leaves

 d) None of the above

10. The white fur of polar bear is not easily visible in snowy background, so predators and prey are not able to see it.

True

False

11. Materials through which heat can pass through easily are called _____ of heat.                                                

a) Insulators

 b) Non-conductors

c) Conductors

d) None of the above

12. Formation of manure from leaves is a physical change.

True

False

13. Bile plays important role in the digestion of fats.

True

False

14. In American continent a cyclone is known as a 'typhoon'.

True

False

15. Substances which are bitter in taste and feel soapy on touching are known as -                                                    

 a) Acids

 b) Indicators  

c) Bases

d) None of the above

 

16. The small pores present on lower surface of leaves are called stomata.

True

False

17. Which option best describes a tropical region ?                     

a) hot and humid    

b) cold and humid  

c) moderate temperature, heavy  rainfall

d) hot and dry

18. Changes in which only _____ properties of a substance change are called physical changes.                                                   

a) physical

b) reversible

c) chemical

d) None of the above

 

19. The rotting dead matter in the soil is called humus.

True

False

20. The water holding capacity is the highest in –                                                   

 a) sandy soil  

 b) loamy soil  

 c) clayey soil

 d) mixture of sand and loam

​

Answer 1

Explanation:

1 . false

2.d

3.false

4.true

5.Liver

6.false

7. C

8.d

9.a

10.True

11.C

12.False

13.True

14.True

15.A

16.true

17.A

18.A

19.true

20.C

Answer 2

Explanation:

1 . false

2.d

3.false

4.true

5.Liver

6.false

7. C

8.d

9.a

10.True

11.C

12.False

13.True

14.True

15.A

16.true

17.A

18.A

19.true

20.C