2. What does it mean for a species to have high biological fitness? Explain in terms

Explanation:

The biological fitness of an organism is dependent on its ability to survive and reproduce in a given environment. ... Similarly, if a trait increases the ability to reproduce, but makes it harder to the organism to survive, it may die before being able to produce offspring.

FITNESS IS THE ABILITY TO REPRODUCE FOR ANY ORGANISM

IF THEY CAN'T REPRODUCE THEY WON'T EXIST

Explanation:

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.