Answer:
It can enhance survival because the animals for example birds are migrating to those places for high or increasing resources
Explanation:
False, because physical change does not involve the formation of substances. An example of physical change is change of state e.g water freezing .It is still water if you were to melt it.
Answer:
They are averages.
Explanation:
atomic numbers on periodic tables are derived from the average value of all the isotopes of the element. So being averages they are sometimes not integers.
There are 150 neutrons in 15N
Answer:
no .........................
