Answer:
I believe your answer should be B.) Materials were pulled together by gravity. I hope this helps you!
You can carry out a test ,
1- take a sample of the air in a test tube
2-add limewater to the test tube
3- result : if it turns milky/cloudy it has microorganisms
4- reason: because every microorganism respires , and so it produces Carbon dioxide .
and limewater is the test to show the presence of Carbon dioxide .
Answer:The extent of variety in the genetic information in the population of offspring.
Explanation:C is correct
Members of the same species found in an ecosystem are called a
B: population
Correct do not use fossil fuels is the answer
