Question
Explain the two mode of nutrition in plants.
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→Riya observes that in her village, people place hay on roofs during summer.
Q.1. Why is hay used?
(a) It looks nice
(b) It reflects heat
(c) It acts as an insulator
(d) It traps water
Q.2. What property of hay helps keep the house cool?
(a) Good conduction$\quad$(b) Radiant properties
(c) Air trapping ability$\quad$(d) High reflectivity
Q.3. Which method of heat transfer is being reduced here?
(a) Radiation$\quad$(b) Conduction
(c) Convection$\quad$(d) Absorption
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