Answer:
B: it allow quick conversation to others
Answer:
Nitrate from agriculture is now the most common chemical contaminant in the world’s groundwater aquifers. Aquatic ecosystems are affected by agricultural pollution; for example, eutrophication caused by the accumulation of nutrients in lakes and coastal waters impacts biodiversity and fisheries.
The answer would be A, 100g since it’s equal
Explanation:
they are white so they can camouflage, but actually the polar bears skin is black and it's hair is hollow
