Question

9. Which of the following is used in the manufacture of steel ?

A) Graphite

B) Coal

C) Coke

D) None of these

10. Which of the following is not a natural resource?

A) Minerals

B) Soil

C) Plastic

D) Water

11. State True or false: Coke is harder and denser than charcoal.

A) true

B) false

12. Choose the correct answer: The petroleum product used in ointments, candles and vaseline is

_________.

A) Kerosene

B) Paraffin wax

C) Petrol

D) Diesel

13. State True or false: Paraffin wax is one of the constituents of petroleum.

A) true

B) false

14. Choose the correct answer: Coal is formed from the remains of ________.

A) vegetation only

B) animals only

C) both animals and vegetation

D) None of these

15. State True or false: Calorific value of LPG is more than that of petrol.

A) true

B) false​

Answer 1

Answer:

9th is coke

Explanation:

coke is used in the manufacture of steel and extraction of many metals

Answer 2

Answer:

ANS of 9 ques is coke

ANS of 10 ques is plastic

ANS of 11 ques is true

ANS of 12 ques is paraffin wax

ANS of 13 ques is true

ANS of 14 ques is none of these

ANS of 15 ques is true

Explanation:

Hope it will help you