Question

What causes shedding of leaves in autumn & growth of flowers and leaves in spring

Answer 1

Answer:

As changing climate and light conditions of autumn evolve, hormones within trees change too. The most notable is auxin. It's produced in the leaves and body of trees and plants. ... These brown and tan, dead-looking marcescent leaves cling to branches until newly emerging growth pushes them off in spring.

Explanation:

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Answer 2

many plants will drop there leaves as a result of overly wet or dry conditions sorry o don't know well