The air can be considered polluted once harmful or toxic substances are being released and introduced into the air and can bring many types of diseases or health problems to the living organisms in it. Some actions can be done in order to remedy air pollution and these include: government passing regulatory laws, testing for car emissions and carpooling so there will be less driving.
Answer:
Your answer would be C.
Because it will help the Scientists may study and discuss organisms more easily.
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Answer:
I'm pretty sure orange, blue, red and yellow.
Answer:
A.
Explanation:
Because the trait undergoes a secondary loss; it has been there but it doesn't always appear in all generations.
