A dead zone is a zone that is created by the presence of the dead and decomposing matter of the plant an abiotic component that depletes the oxygen and thereby creating a thick layer of nutrient-rich deposits in the aquatic environment that does not support the marine and fish life.

They may result from agricultural, industrial and urban flows. And the changes that occur with the climate changes and the seasonal cycles of the earth. There are four types of dead zones classified on their lengths.

Permanent dead zone i.e the rarely exceed 2 milligrams per liter.

Temporal dead zones i.e the short-lived dead zone that lat flour hours a day.

Seasonal dead zones occur annually mostly in the summer months.

The hypoxic zone that occurs in the night time.

The baltic seas, Chesapeake bays, Lake Erie, and the other zone are affected by these blooms of algae and other foreign substances.

7 0

3 years ago

Where do most south east Asia people live

puteri [66]

Answer:

Settlement patterns. Southeast Asia is predominantly rural: three-fourths of the people live in nonurban areas. Moreover, population is heavily clustered in fertile river valleys and especially in delta areas, such as those of the Mekong and Irrawaddy rivers.Most of the region's people live in the more temperate climate zones. In East Asia, for example, the coastal regions of Central and Southern China, Japan, and South Korea are primarily a humid temperate climate.

5 0

3 years ago

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Which one of the following cities is incorrectly associated with the region in which it is located? Bridgetown is in the Lesser

Lena [83]

Answer: Mexico city is in central America

Explanation: this question is a little bit tricky since Mexico (the country) in general is located part in North America and part in Central America. However, Mexico city which is the capital of Mexico is definitely located in North America.

3 0

3 years ago

To date a sedimentary rock layer between two igneous rock units, geologists use radiometric dating and assume that the sedimenta

goldenfox [79]

The answer in finding the age of a sedimentary rock layer through radiometric dating can be assumed between the absolute ages of the two igneous units.

Sedimentary rocks don't have radioactive elements so the beast way to know the age is through understanding what can elements in between can provide as evidence

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3 years ago

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