What are four main types of fresh water ecosystems

Chemistry

2 answers:

saw5 [17]3 years ago

8 0

Answer:

streams and rivers

ponds and lakes

wetlands

ocean gulf of Mexico

hope it helped

tensa zangetsu [6.8K]3 years ago

4 0

Oceans. Oceans are some of the most diverse and geographically expansive ecosystems on earth. Ocean ecosystems are divided into four zones: intertidal, pelagic, benthic and abyssal. The intertidal zone comprises the regions where ocean waters meet land.

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What happens when the pressure of a gas is decreased?

Serggg [28]

Answer:

The combined gas law states that the pressure of a gas is inversely related to the volume and directly related to the temperature. If temperature is held constant, the equation is reduced to Boyle's law. Therefore, if you decrease the pressure of a fixed amount of gas, its volume will increase.

Explanation:

3 0

3 years ago

The element chlorine has two stable isotopes, chlorine-35 with a mass of 34.97 amu and chlorine-37 with a mass of 36.95 amu. Fro

sergejj [24]

<u>Answer: </u>One isotope has a percentage abundance of 75.75 % and the percentage abundance of another isotope is 24.24%.

<u>Explanation:</u>

We are given the two stable isotopes of chlorine with their respective masses. The average atomic mass of chlorine is also given.

Average atomic mass of chlorine = 35.45 amu.

Let us assume the fractional abundance of one isotope be 'x' and the fractional abundance for another isotope will be (1 - x) because the total fractional abundance is always equal to 1.