Answer:
Average speed = total distance / total time
= 68 / 1 5/12 [ change 1 5/12 to an improper fraction - 17/12]
= 68 / 17/12 [perform division]
= 68 * 12/17
= 48 miles per hour
Population decrease and extinction
Answer:
UMM MAY BE POLLUTION WILL INCREASE
Explanation:
THE HUMANS ARE MAKING MORE AND MORE MACHINES AND FACTORIES AND OTHER THINGS WHICH CAN POLLUTE THE ENVIRONMENT.
Populations tend to grow because of repopulation.
SY Sy sY sy cause each individual produced 4 gametes at a time
