Answer: low pollution
Explanation:
The environmental effects of nuclear power is light compared to others
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➷ These would be called 'Gymnosperms.'
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A biological community with organisms interacting within their environment :)
Answer:
Mechanical barriers — which include the skin , mucous membranes , and fluids such as tears and urine — physically block pathogens from entering the body. Chemical barriers — such as enzymes in sweat , saliva , and semen — kill pathogens on body surfaces.
