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If frost is forecast, why do farmers protect crops at night?

Answer and explanation

Correct answer: Because ice crystals can damage plant tissues

Correct answer: A. Frost forms when water vapour deposits as ice crystals on very cold surfaces, or when freezing moisture produces ice on plants. Ice can injure delicate plant tissues because freezing affects the water inside and around plant cells. The damage may appear as wilted, browned, or necrotic leaves, especially in sensitive crops, although the exact effect depends on the crop, temperature, duration, and growth stage. B is wrong because dew is liquid water and does not always burn plants. C is not a real effect of fog, and D reverses the agricultural effect: frost can harm plants rather than ripen them. Farmers may use suitable protective measures to reduce heat loss or shield plants. Memory cue: frost means freezing risk, so protect tender tissues.

Related tags

Frost WarningCrop ProtectionPlant TissuesAgricultureForms Of Condensation: DewFrostFogAnd MistForms Of Condensation Dew Frost Fog And MistWater In The AtmosphereGeography

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