Biology · Ecology
Which one of the following general global patterns correctly depicts the relationship of the Net Primary Productivity to Gross Primary Productivity (NPP/GPP) ratio with latitude?
- 1The NPP/GPP ratio generally decreases from the equator toward the poles.✓
- 2The NPP/GPP ratio generally increases from the equator toward the poles.
- 3The NPP/GPP ratio remains completely constant across all latitudes.
- 4The NPP/GPP ratio peaks at mid-latitudes and is zero at the equator and poles.
Correct answer
The NPP/GPP ratio generally decreases from the equator toward the poles.
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