Human Body Worksheet-2

Human Body Worksheet-2

Based on the image given below, answer the Q.1-Q.3

1. What might happen if plants stop releasing oxygen into the atmosphere?

A. Plants will be healthier

B. Number of plants will increase

C. Number of animals will increase

D. Animals will die from the lack of oxygen

2. By observing the interdependence of plants and animals and circulation of oxygen and carbon dioxide we can say that ___.

A. Some day all the oxygen will be used up by the animals

B. Some day all the carbon dioxide will be used up by the plants

C. The amount of oxygen is increasing and that of carbon dioxide is decreasing in our atmosphere

D. The level of oxygen and carbon dioxide in the atmosphere is kept constant

3. Plants and animals help in maintaining the balance of____.

A. Trees and animals

B. Oxygen and carbon dioxide

C. Green plants and plant eaters

D. Water and minerals

4. Mosquitoes spread ____.

A. Cancer                                       B. Stomach ache

C. Malaria                                      D. Blood pressure

5. To protect ourselves from disease, sewage should be disposed off in ____.

A. Soakpit                                      B. Garbage dump

C. Covered drainage system      D. Dustbins

6. Minu and her friends went on a picnic and threw banana peels on the beach. Which one of these is the reason that should not be done?

A. Banana peels do not mix with the soil for number of years.

B. Banana peels make the beach unhygienic and dirty

C. Banana peels are harmful to animals on the beach that eat them

D. Banana peels pollute the water because they contain harmful chemicals

7. Which of the following is used to see the disease-causing germs?

A. Camera              B. Magnifying lens

C. Telescope                 D. Microscope

8. The teeth that are used for cracking hard food are _____.

A. Molars           B. Premolars    C. Canines         D. Incisors

9. The number of wisdom teeth in the mouth are___.

A. 1                     B. 2                     C. 6                     D. 4

10. In the figure given below, the teeth marked as 'X' are called ___.

A. Molars           B. Premolars    C. Incisors         D. Canines

Answer Key:

(1)–D; (2)–D; (3)–B; (4)–C; (5)–C; (6)–B; (7)–D; (8)–B; (9)–D; (10)–B