Select the correct answer.
the level of oxygen in the air is measured in a garden and on a city road. which location has a higher level of oxygen and why?

The garden.

Explanation:

There is more organisms doing photosynthesis(the process turning sunlight, water, and carbon dioxide into energy and oxygen) in the garden because there are more plants in the area.

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.