Question

what are things produced by tress which are not useful for their growth​

Answer 1

Answer:

✯꧁⋆᭄Solution⋆᭄꧂✯

Some of them are oxygen, fruits, vegetables, flowers, nectars, wood, medicines, paper, rubber, cotton, spices, fibre, perfume, manure, cosmetics etc.

Tress don't require all such things.