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:
no they give different material
Explanation:
Answer:
D. Spain
Explanation:
Every other country on the list possesses nuclear weapons. The reason why Spain has none is that Spain plays a big role in supporting a world free of nuclear weapons. There are many activists and organizations in Spain that aim to raise awareness of the dangers that nuclear weapons pose to the global population. More than 90 Spanish parliamentarians are in favor to ban nuclear weapons.
Answer:The definition of a "melting pot" is a place where different people from different cultures and beliefs come together and begin to merge and mix. America is an example of a melting pot where immigrants and people from all over the world visit and live and share thoughts and ideas to create one big new culture. Texas is considered one because of the mix of Hispanic,native Indian,island natives and native Americans merge and mix.
Explanation:
Answer:
geothermal
Explanation:
The Earth gets hotter as one travels towards the core, known as the geothermal gradient. The geothermal gradient is the amount that the Earth's temperature increases with depth.
