ECOLOGY
ECOSYSTEM
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Increases because there is more light
|
|
|
Decreases because there is less light
|
|
|
No change
|
|
|
Increases because of volcanic activity
|
Detailed explanation-1: -Water gets colder with depth because cold, salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface.
Detailed explanation-2: -Heat transfer, whether from the air, sunlight, another water source or thermal pollution can change the temperature of water. Water temperature plays a major role in the quality of aquatic life and habitats. Heat flow and the fluctuation of temperature determine what species will live and thrive in a body of water.
Detailed explanation-3: -Water depth is a key factor controlling the functional stability of aquatic systems13, 14, largely because it has effects on growth, reproduction and re-establishment of submerged macrophyte species by changing irradiance to organs, and thus influencing carbon assimilation and nutrient use.
Detailed explanation-4: -When water is heated, it expands, or increases in volume. When water increases in volume, it becomes less dense. As water cools, it contracts and decreases in volume. When water decreases in volume, it becomes more dense.