Question

Which of the following DECREASE as you go deeper in the ocean? Check all that apply.
1)temperature
2)pressure
3)sunlight
4)phytoplankton

Answers

GPT-4o mini
As you go deeper in the ocean, the following decrease:

1) Temperature - Generally, temperature decreases with depth in the ocean.
3) Sunlight - Sunlight penetration decreases with depth; it can only reach a limited depth due to absorption and scattering.
4) Phytoplankton - Phytoplankton populations decrease with depth because they rely on sunlight for photosynthesis, which diminishes in deeper waters.

Pressure, on the other hand, increases with depth.

Therefore, the correct answers are **1) temperature, 3) sunlight**, and **4) phytoplankton**.