The population of the Earth is _____.

16 million
6 million
3 billion
6 billion
16 billion

3 answers

6 billion.
Humans have a responsibility to use the Earth's resources wisely because _____.
A)Humans are the smallest consumer group.
B)Humans are the biggest producers.
C)Humans are the ones who use the earth's resources.
D)Humans don't have the responsibility of our earth, animals and plants do.
E)Humans don't affect the environment.
C) Humans are the ones who use the earth's resources.