It increases ecosystem productivity, protects fresh water resources, and provides nutrient storage and recycling
The testicles produce the sperm and the hormones
germ cells
it occours in the germ cells
Answer:
Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment. Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface.
Explanation:
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