Question

jou blow air in mirror the mirar ha
14. One of the main nutrients required by plants to grow
A zinc
B. boron
C. phosphorus
D. copper
)
15. The process which involves the exchange of gases is called
A. Respiration B. Circulation
C. Digestion
D. Breathing
Draw t
16. During inspiration air passes into lungs due to
A. Increased volume of thoracic cavity
B. Fall in pressure inside the lungs
C. Increase in the volume of thoracic cavity and fall in lung pressure
D. Muscular expansion of lungs
17. Roots respire through
A. Spiracles B. Lenticels
C. Stomata
D. Air spaces
18. Which of the following animals breathe through their skin and lungs ? (
C. Snake
D. Earthworm
A. Fish
B. Frog
Guard cell
19. What happens to lime water, when we exhale air into it?
A. Remains same
B. Turns blue
C. Turns milky
D. Becomes colourless
20. Plants respire through
A Cells
B. Stomata
C. Gills
D. Cell membra
21. The respiratory organs in cockroach are
A. Lungs
B Gills
C. Lenticels
D. Spiracles
Pra
22. Raw materials involved in the process of photosynthesis
A. carbondioxide B. water
C. sunlight
D. all of them
23.Circle the insectivorous plant among the plants given below.
A. Hibiscus
B. Teak
C. Nepanthes
D. Aloevera
24. Green parts of plants use carbondioxide, sunlight and water to make the follo
substance .....
A. protein
B. mineral
C. starch
D. fat
25. The main nutrients needed by plant
A nitrogen B. potassium
(
D. all of these
C. phosphorus
26. Which of the following raw materials is available in the air for
photosynthesis
A Oxygen
B. Carbondioxide C. Nitrogen
D. Hydrogen
SCIENCE​

Answer 1

Answer:

14c copper

15 breathing

16 c

17 b

18 b frog

19 c turns milky

20 b stomata

22 d all

23 c .

24 starch

25 all

26 co2

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Answer 2

Answer:

1. Option C
2. Option A
3. Option D
4. Option D
5. Option
6. Option C
7. Option A
8. Option D
9. Option D
10. Option A (I Think)
11. Option A (I Think)
12. Option D
13. Option B

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