i. Solar energy or wind energy or tidal energy or any other source of renewable energy.
Explanation: Inexhaustible resources of energy are those which are abundantly available in nature and can be used for an infinite interval of time. Recall petroleum is also exhaustible resource because it is limited and takes a very long time to get formed again.
ii. Synthetic dyes, drugs, explosives, perfumes, plastic, paints and roofing materials.
Explanation: informative question. Information as given in the textbook. Use of coke is in the manufacture of steel. Similarly, the use of coal tar is in making above listed materials
iii. Manufacturing of fertilizers.
Explanation: CNG used in making fertilizers like Petrochemicals used in making Plastics.
iv. toxic products of paints made from petroleum and heavy metals.
Explanation: carbon di oxide is the reason for global warming. By similar logics, toxic products that are released from the paints made from petroleum are the reason for nausea and many other diseases.
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