why has recycling of nonbiodegradable waste become so essential these days?
Yes, your friend is right! Let me add few more points to it.
Recycling of non biodegradable wastes:
1 Reduces pollution,
2 Reduces waste products in landfills and hence saves space in landfills
3 Reduces the amount of raw materials required for the production of new products,hence saves earth.
4 Reduces global climate change.
5 Processing of recycled materials takes less energy to recycle than the new products, hence it saves energy.
Recycling of non biodegradable wastes:
1 Reduces pollution,
2 Reduces waste products in landfills and hence saves space in landfills
3 Reduces the amount of raw materials required for the production of new products,hence saves earth.
4 Reduces global climate change.
5 Processing of recycled materials takes less energy to recycle than the new products, hence it saves energy.