Where is dissolved oxygen likely to be lowest

a) at the bottom of a deep lake
b) in the fastest part of a stream
c) along the edge of a fast river
d) at the surface of a tidal pool

The answer is A. at the bottom of a deep lake (Apex)

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

digestion

it excretes wastes