Question

leaves are reduced to spines in a desert?? why?​

Answer 1

Answer:

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Leaves in cactus are reduced to spines. This prevents or reduced the loss of water by transmition, as there is a scarcity of water in desert. The stems in these plants become green to carryout the process of photosynthesis.

( THIS PROCCESS IS IMPORTANT IN DESERT BECAUSE THERE IS LAVK OF GREENERY THERE. AND PHOTOSYNTHESIS IS ONLY APPLIED ON GREEN PLANTS )

Answer 2

Answer:

They are present in hot deserts which are scarce in what so in order to reduce the loss of water by transpiration from the surface of the leaves , it leaves are reduced to Spines.It prevent or protect the cactus plants for being eaten by the desert animals.....

Hope it helps you My Friend........