Question

What do you mean by the following:
i. Sewage
ii. Eutrophication
iii. Recycling

Answer 1

i. Sewage is the collective name of the wastewater and human waste from houses and other buildings.

ii. Eutrophication is a process by which a water body becomes enriched in dissolved nutrients, mainly phosphates, that stimulate the growth of aquatic plant life which usually resulting in the depletion of dissolved oxygen.

iii. Recycling is the practice of reusing items that would otherwise be discarded as waste.