B - When many individuals of the same species are available for mating.
And
C - When the individuals live in a stable environment in which they thrive.
Answer:
They are rovers that are made to study Mars. For example, they can analyze the martian soil.
Hope this helps :)
plz mark Brainliest :3
Explanation:
All the deserts are found at 30<span>°N because
</span><span>Hot air from the equator rises, then cools, moisture is lost, and the dry air comes down at 30 degrees north and south</span>