To name: The several ways in which insects are useful and detrimental to humans. Introduction: Insects play a great ecological role on earth. Without the activity of insects, life on earth would have come to an end. Hence there is a great need for the conservation of insect species. To date around one lakh species of insects have been identified. Insects can be both useful and harmful to human beings.

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Chapter 21, Problem 18RQ

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To name: The several ways in which insects are useful and detrimental to humans.

Introduction: Insects play a great ecological role on earth. Without the activity of insects, life on earth would have come to an end. Hence there is a great need for the conservation of insect species. To date around one lakh species of insects have been identified. Insects can be both useful and harmful to human beings.

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