<span>Politics
Ignore this i just need at 20 character limit
</span>
This is called species richness
Answer: If contents of vectors are equal than it will return true else false. It will compare all the elements in vector, we can not compare the sub sections of vectors using it. It will compare all the elements in vector, by calling operator on each element. Hopefully i helped
Explanation:
Investigate past climate and atmospheric changes
The answer is the spring equinox