The greatest concentration of nitrogen on earth is found in
A) living organisms, including bacteria.
B) the atmosphere.
C) soil minerals.
D) fossil fuels.
E) oceans.

Question

Quizplus · Accepted Answer

The atmosphere contains about 78% nitrogen, making it the greatest concentration on earth. While living organisms, including bacteria, do contain nitrogen, it is still a smaller concentration than the atmosphere. Soil minerals and fossil fuels may contain nitrogen, but it is not the greatest concentration found in these sources. Similarly, while oceans do contain nitrogen, it is not as concentrated as in the atmosphere.

The Greatest Concentration of Nitrogen on Earth Is Found in