Question

11. Which of the following statements is incorrect about endangered species?
a. Their number has decreased drastically.
b. They might become extinct in future.
C. They pose a danger to other animals,
d. Their natural habitat needs to be protected.
12. Materials which can be drawn into wires are called ductile. Which of the following is not a
ductile material?
a. Silver
b. Sulphur
C. Copper
d. Aluminum
13. The most important function of cell membrane is that it:
a. controls the entry and exit of materials from cells.
b. controls only the entry of materials into cells.
C. controls only the exit of materials from cells.
d. None of the above.
14. In our country, large patches of forests are being cleared for cultivation of crops. The
environmental impact of such a practice will lead to
a. soil erosion
b. soil pollution
C. soil conservation
d. soil fertility
15. Which of the following non-metals reacts and catches fire on exposure to air?
a. Phosphorus
b. Sulphur
c. Nitrogen
d. Hydrogen
16. Choose the correct statement from the following:
a. It is difficult to transport natural gas through pipes.
b. The disadvantage of natural gas is that it cannot be used directly for burning in homes.
C. Natural gas is stored under high pressure as compressed natural gas.
d. Natural gas cannot be used for power generation.​

Answer 1

Answer:

1. a

2. c

3. a

4. b

5. b

6. c

please mark this question as brainliest