Answer:
It Showers
Explanation:
The ability to spray water is also an important part of basic hygiene and health care. Elephants use the trunk as a shower with various pressure settings. It can either send a power blast jet of water or offer a more gentle alternative!
Answer:
B. Aerobic bottom water
D. High organic productivity in the overlying oxygen rich water
Explanation:
A Shale is a sedimentary rock usually formed from silt and clay-size mineral. There are different colors of Shale. The Black Shale is formed under anaerobic conditions. This means that oxygen is deficient in the water where the Shale forms.
A little amount of organic materials is required for the formation of Black Shale and because Black Shale is formed in an environment lacking oxygen, an oxygen-rich water would not be necessary for its growth. Sediments are necessary in the formation of Black Shale.
<span>biogeochemical cycles</span>
