What is the main importance of irrigation in agriculture?

Correct answer: Providing required water to crops

The direct answer is option C: irrigation provides the water that crops require. Irrigation means supplying water to farmland by wells, canals, pipes, sprinklers, or other methods when rainfall is absent, irregular, or insufficient. Step by step, a plant needs water to absorb nutrients, make food, remain firm, and grow; if rain does not provide enough water, the farmer supplies it through irrigation. Therefore, irrigation supports healthy growth and can protect crops from drought. Option A is wrong because sunlight is important, but irrigation does not mean giving only sunlight. Option B is wrong because keeping soil always dry harms most crops and prevents normal growth. Option C is correct because supplying required water is the central purpose of irrigation. Option D is wrong because irrigation cannot remove the need for seeds; crops still begin from seeds or other planting material. Memory cue: irrigation means “irrigate = provide water,” especially when rain is not enough.