the black plague took a toll no the population back then and claimed alot of lives
The environment was a tropical ocean
B. Animals migrate to another part of the world
If that don’t work C
TB. It is open to change.he thing about science is that a discovery may be made today and written up but by tomorrow something else is found that edifies what was found or proves it incorrect or make it obsolete. .Therefore the answer is <span>B. It is open to change</span>
