How can we make our crops disease resistant?

By spraying insecticides and pesticides

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By crossing them with their wild relatives

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Destroying diseased ones

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Eliminating wild species

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Solution

The correct option is D By crossing them with their wild relatives
Our crops could be made disease resistant by crossing them with wild varieties, which has disease resistance gene. This helps in yielding a new breed, which is highly disease resistant as well as carries the features of the existing variety.
So, the correct answer is 'By crossing them with their wild relatives'

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