Chapter 13
Earth as a System: Energy, Matter, and Life
CBSE Class 9
Science Solutions
Educart Science class Class 9 NCERT Exemplar cover
Question:

How does the cool mountain breeze benefit agriculture activity, particularly the crops and soil? [Pg. No. 261]

Answer: Verified

A cool mountain breeze can benefit agricultural activities in the following ways:

(1) Reduces heat stress: Cooler air lowers the temperature around crops and helps plants recover from daytime heat, supporting better growth.
(2) Maintains soil moisture: Lower temperature reduces evaporation from the soil, so moisture remains available to plant roots for a longer time.
(3) Reduces transpiration: Cool air slows the loss of water from leaves, helping crops remain fresh and preventing wilting.
(4) Improves air circulation: A gentle breeze allows better exchange of gases around leaves, which supports normal plant processes.
(5) May reduce some pests and diseases: In some cases, cooler and well-ventilated conditions can reduce the growth or spread of certain pests and fungal diseases.
(6) Improves the local microclimate: It creates a cooler and more suitable environment for crops, soil organisms, and root activity.

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