Which of the following is true of dead zones? a. they are formed when a volcanic eruption covers the soil with ash. b. they are caused by an increase in the saltiness of the land, making the land infertile. c. they are formed when a specific area lacks nutrients and vitamins. d. they are formed when excess oxygen accumulates in a specific region. e. they are caused by algae blooms that occur when agricultural fertilizers and waste runoff enter natural waterways

c. They are formed when a specific area lacks nutrients and vitamins.

Explanation: A dead zone is a hypoxic area that lacks nutrients and vitamins.

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answer:

can you answer my question?

explanation:

the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true?

a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of

5

9

degree celsius.

a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.

a temperature increase of

5

9

degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.

a) i only

b) ii only

c) iii only

d) i and ii only