Dead zones in seas and oceans are mainly caused by eutrophication, which is an excess of nutrients entering the water through human activities, leading to low-oxygen conditions where most marine life cannot survive.
The major cause of 'dead zones' in seas and oceans is primarily due to eutrophication, which is characterized by an excessive amount of nutrients, usually nitrogen and phosphorus, entering the water bodies. These nutrients primarily come from human activities, such as agricultural runoff, waste treatment plants, and fossil fuel emissions.
When these excess nutrients are available in the water, it leads to a rapid increase in the growth of algae in a process called algal bloom. When these algae die, they are broken down by bacteria through a process called decomposition. This decomposition process requires oxygen, leading to a significant decrease in the amount of dissolved oxygen available in the water. This creates a low-oxygen condition known as hypoxia. When the oxygen levels become exceedingly low, it results in dead zones where most marine life cannot survive.
#SPJ2
Answer:
They made conscious attempts to preserve the history and communal life of the Jewish people despite Nazi efforts to eradicate the Jews from human memory.
Explanation:
take a picture pf the answer
B.Khrushchev agreed to allow American forces to occupy Cuba and remove Castro from power.
C. The U.S. Backed down and and allowed the soviets to place missiles in Cuba.
D. Kennedy and Khrushchev secretly agreed to divide the island of Cuba between the U.S. And the Soviet Union.
Please help.:)
b. to land on each triangle at least once
c. to avoid landing on the white triangles
d. to be the first to bear off all of one's checkers
The Song Dynasty was considered as the highest era of classical Chinese innovations that lead to invention and creations. Aside from that, the Song dynasty was also known for its intellectual leaders who were highly influenced with the philosophy of Confucius. They succeeded in ruling the Southern part and China proper and had succeeded overthrowing the Han dynasty