Assertion: We should stop weeds from growing in the crop fields. Reasoning: Weeds leave no space for crops to grow.

Both Assertion (A) and reasoning (R) are correct and R is the correct explanation of A. Both Assertion (A) and reasoning (R) are correct and but R is not the correct explanation of A. Assertion (A) is true but Reasoning (R) is not correct. Assertion (A) is not true but Reasoning (R) is correct.

Assertion (A) is true but Reasoning (R) is not correct.

Weeds should not be allowed to grow in the crop fields as they compete with the crops for resources like sunlight, water, and nutrients. So, weeds affect the crop yields, and they do not compete for space.