D or c because one of them was agriculture that would be c but they also did the other two known as d but swaying towards c
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: b. Orchid mantises tend to be advantaged in habitats that remain constant; the rain forest habitat is likely to shift because of global climate change.
Explanation:
The orchid mantis is a predator in South East Asia that camouflages itself as an orchid to catch its prey.
While the tropical cockroach is a more hardy specie, the optimum habitat for orchid mantises is one with limited variation in temperature, moisture and humidity. Therefore, as temperatures increase and climate change results in severe weather changes, it will lead to adverse effects on orchid mantises.
Answer:
<h3>Ocean salt primarily comes from rocks on land. ... Rocks on land are the major source of salts dissolved in seawater. Rainwater that falls on land is slightly acidic, so it erodes rocks. This releases ions that are carried away to streams and rivers that eventually feed into the ocean.</h3>
