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question_answer1) Assertion (A): The resources are present in unlimited quantity in nature and are not likely to be exhausted by human activities are called Inexhaustible resources. Reason (R): Forests, wildlife, minerals are examples Inexhaustible resources.
question_answer2) Statement-I: Forests, wildlife, minerals, coal, petroleum, natural gas are the examples of exhaustible resources. Statement-II: The resources that can be exhausted by human activities are called exhaustible resources.
question_answer3) Assertion (A): The slow process of conversion of dead vegetation into coal is called catenation. Reason (R): When heated in air, coal burns and produces mainly carbon dioxide gas.
question_answer4) Assertion (A): Petroleum is called Black gold Reason (R): Due to its great commercial importance, petroleum is called black gold.
question_answer5) Assertion (A): Coal, petroleum and natural gas be prepared in the laboratory from dead organisms. Reason (R): They cannot be prepared in laboratory as their formation is a very slow process and conditions for their formation cannot be created in the laboratory.
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