B. . Doctrine that the US had the right and duty to expand throughout North America.
In India, the government favors the building of dams in order to<span> 'A: reduce dependency on irrigation.'</span>
Czech Republic and Slovakia
The answer is to fill different niches.
<span>Adaptive radiation is the process of development of new forms
of organisms from an ancestral species. <u>When an environment changes or some new
niches open, speciation from the ancestral species occurs. </u>New species have morphological and
physiological adaptations which allow them to exploit a whole range of
divergent environment.</span>
Answer: show what's happening to are earth
Explanation: