Answer:
D
Explanation:
Islam is the dominant religion in North Africa and the Horn of Africa.
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.
Answer:
fossil record of dinosaurs
Explanation:
geologists used fossils, meteor rocks, and rocks to figure out that earth was 4.6 billion years old
B is the answer
for your question becausegroundwater is not a solide waste disposal
Many web pages use a MAP structure to define an area of focus