Concept:Irrigation provides water essential for seed germination, nutrient transport, and protection from extreme temperatures.
Explanation:Statement (A) is correct because seeds need moisture to germinate.
Statement (B) is correct because water dissolves nutrients and carries them to all plant parts.
Statement (C) is incorrect — watering at intervals does not improve soil texture; that requires organic matter like manure.
Statement (D) is incorrect — watering does not make soil porous; proper tillage or organic matter improves porosity for gas exchange.
Statement (E) is correct — water helps insulate crops from frost and hot air, protecting them.
Thus, only statements (A), (B), and (E) justify the need for irrigation.
Answer:(A), (B) and (E) — Option D.