Question

1. Resources that are present in limited amount are called Ubiquitous resources.
2. Coal was formed from the remains of vegetation.
3. Anthracite is the hardest coal.
4. Crude oil is a mixture of various hydrocarbons.
5. natural gas, propane, diesel is used as a fuel for engines and generators.
6. Petroleum is found locked in __________ rocks deep below the Earth’s crust.
7. Natural gas is __________ than air and mainly consists of _____________.
8. Compressed natural gas (CNG) is an alternative to petrol used to run vehicles.
9. __________ is the chemical derived from petrol and natural gas.
10. Carbon dioxide emission is responsible for _______________ effect.
11. __________ Principle is used to minimize the consumptions of non-biodegradable materials.
12. ________________ can lead to melting of the polar ice caps
6,7,9,10,11,12
only these thanku

Answer 1

Dear Student,

6. Petroleum is found locked in sedimentary rocks deep below the Earth’s crust.
7. Natural gas is lighter than air and mainly consists of methane.
9. Petrochemical is the chemical derived from petrol and natural gas.
10. Carbon dioxide emission is responsible for greenhouse effect.
11. 3Rs (Reuse, Recycle and Reduce) principle is used to minimise the consumptions of non-biodegradable materials.
12. Global warming can lead to melting of the polar ice caps

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