Answer:
because we must protect our DNA and mental psychology to the humanity doesn't lost. Some scientist working on DNA and they try to change some piece of DNA to identify can be change but I think this is a very dangerous and risky work
<span>Look down toward the right side of the road to avoid being <span>blinded</span></span>
Answer:
Operation costs are significant in larger cities because of the size of the city that requires more taxis to complement the cities' size. Therefore, taxicab industries will guarantee that the trips made by each taxicab incur minimum expenses, resulting to the economies of scale.
Explanation:
A good way to keep the enviromental quality clean is to reduce, reuse, recycle.