Question

12. Leaves of desert plants are reduced to spines to prevent transpiration. How do
such plants prepare food?
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Answer 1

;-);-);-);-);-);-)

they have a fleshy stem which is green in colour and has chlorophyll on them,so they can prepare their own food

and some desert plant has spine and small green leaves too

Answer 2

there are such plants like cactus they can prepare their food through process of photosynthesis