Higher order thinking skills (HOTS) I — task. Science State Board, Class 10.

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1. Although coal and petroleum are produced by the degradation of biomass, yet we need to conserve them. Why?

a. Coal and petroleum can get exhausted, if we use them at a rapid rate .

b. The formation of fossil fuel is a very quick process and takes a very less time for renewal .

c. It is necessary to conserve coal and petroleum for the future generation, by reducing their consumption .

2. What are the objectives for replacing non-conventional energy resources from conventional energy resources?

a. Non conventional energy resources are non-polluting renewable sources .

b. Non conventional energy resources are not environmental friendly or environment clean .

c. Non conventional energy resources are available in limited amount and cannot be renewed over a short period of time .

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16. Higher order thinking skills (HOTS) I