Coal, petroleum, and oil are energy solutions that release pollution into the air.
Answer: lower the activation energy for reactions they catalyze
Explanation: this should be the correct answer but i'm not seeing it for your question, if you forgot to leave it out well this is correct, however if you did not leave this out then I would say A.
May we have the choices but i will say human impact
<span>There is a remote possibility a barren rock could turn into a temperate forest, but this would have taken billions of years. It is not likely to have happened therefore I would have to say the answer is false.</span>