14. Fill in the gaps.
Pollutant
Source
Effect
Phosphate
Detergents
B
Plastic microbes
Causes endocrine problem in
humans
Confuses marine animals and
enter into food chain
Affects central nervous system
in animals
А
Insecticide
Nitrates
Fertilizers
С
Cadmium
Leechate from open dumping
of solid waste
D
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Answer:
A group of ions carrying a charge are called polyatomic ions
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