Answer:
Umm...sorry i don't think i can help you because this homework is given from your book
Mass extinctions occur for many reasons. Changes in the environment might make it impossible for the local life to survive, diesease or drought might strike, or there might be a natural disaster. These extinctions make good divisions in geologic time because they are easy to locate over a wide area and mark a definitive change in the Earth's systems.
<span>They can indicate standards of living in each system because GDP per capita is generally lower, and poverty rates are generally higher, in countries with lower standards of living.
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Answer:

Explanation:
The equation is:

To get rid of the denominator, multiply both sides by 3. Then you have:

To get x alone on one side, add 2 to both sides. Then you have:

Answer:
badlands are because of fertility and some examples like plastic poly bags etc are polluting the environment and making the land bad
Explanation:
answer is correct in your opinion then mark me as brain list