Nobody on here is going to write a entire cer for you
Oxygen is 21% and nitrogen is 78% so combined is 99%
Answer:
Answered B
Explanation:
The earth moves which makes the stars and everything in space seem like its moving
Answer:
True
Explanation:
Competition is the act of competing with one another for a particular resource. An example is two animals quarrelling over a food or two people quarreling over who lost their money. Competing is a type of rivalry in which two people compete for one resource. The answer for this question is True.