Question

How is animals’ hair useful for plants and humans?

Answer 1

Answer:

because it helps to make woolen jackets, blankets etc.

Explanation:

Answer 2

Answer:

Human hair could be used instead of chemical fertilizers for some plants like lettuce, new research in a horticultural journal suggests. The hair, which is manufactured into cubes from barbershop and hair-salon waste, provides nitrogen for plants as it decomposes, just as natural-gas-derived sources like ammonia do.