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.
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It was China's capital in the sixth century and the largest city in the world at the time.
B.
It was a section of the Grand Canal that connected the Yangtze and Yellow Rivers.
C.
It was a branch of Buddhist philosophy that stressed the importance of prayer.
D.
It was the name given to the defensive watchtowers along Great Wall of China.
Answer:it is d
Explanation: its right cuz i took the test on k-12 online school.
b. India
c. Rwanda
d. South Africa
Answer:D i am telling you
Explanation:
B. Established the Mayflower Compact
C. Allowed women to vote
D. Allowed company shareholders to vote
Mathematics.
Euclid of Alexandria, who lived around 300 BC, was a Greek mathematician known for his notorious contributions to geometry among other fields of mathematics, his contributions were so important that he is considered to be The father of Geometry. One of his most commonly known accomplishments was that of being the first person to write a complete review of Geometry on his well-known and recognized masterpiece, Elements.
His legacy continues to be of an incredible value nowadays.
Answer: “Nationalities which are now under Turkish rule should be assured an …opportunity of an autonomous development…”
The Fourteen Points (January 8, 1918) was a statement by President Woodrow Wilson, which was to be used for peace negotiations in order to end World War I.
In these lines, the president discusses the importance of giving nations the opportunity to govern themselves. He argues that the countries that were under Turkish rule (as part of the Ottoman Empire) deserved the opportunity to create an autonomous government and direct their own development.