Question

Answer these question:-​

Answer 1

1. False

2.True

3.True

4.False

5.False

6.True

7.False

8.True

9.True

Answer 2

$\huge\bold{Answer:-}$

1) False

• Coal is a renewable source of energy is false statement. Coal is exhaustible natural resources it means it is present in limited quantity if these resources one replinished can't be recovered of recycle.

2) True

• Coal is solid fossil is true statement as it is found in solid form.

3) True

• Coke is a pure form of carbon is true because when we change coal into coke the coal contain some sulphur etc. So on buring coal all impurities removed and we get coke.

4) False

• CNG is more population than petrol petrol is false statement. CNG is a cleaner fuel it contains very low content of carbon in it.

5) False

• 40% of electricity generation is depend on coal is false statement. In cirrent world we have many eco friendly sources of electricity generation like a solar energy , tidal energy etc.

6) True

• Carbon content of lignite 25 to 35% is true statement. lignite is brownish black in colour and has 25 to 35% carbon content.

7) False

• Fossil Fuels are inexhaustible resources is false statement. Fossil Fuels are present in limited quantity ones replineshed cannot cannot be recovered. Fossil Fuels are exhaustible natural resources.

8) True

• Napthalene ball is obtained from coal tar is true statement. Napthalene ball is use to other repel moths and insects.

9) True

• The time period taken to complete carbonisation is called carboniferous age is true statement. Carboniferous age is time period to convert organic matter into resources.

Hope it's helpful :)