The answer will be the gravitational force, because if we weren't in the gravity of the sun we would also be floating around with not much purpose.
<span>B. chemical control by use of chemicals
</span><span>D.physical control by physically removing the species
</span><span>
A. biological control by using other living organisms to rid of invasive species
</span>
Taken the quiz, and got them all correctly answered!
Have a good day. <span />
It avoids confusion through scientists. If you think, they could be practicing or studying in varying countries and something uniform for science avoids all confusion!