Answer:
1: sustainability is an avoidance of the depletion of natural resources in order to maintain an ecological balance.
2: Sustainability means meeting our own needs without compromising the ability of future generations to meet their own needs.
Explanation:
hope it helps you!
Answer:
"U"-shaped, with peaks at the low and high extremes of beak size; disruptive selection
Altitude decreases the temperature in the troposphere....
Precipitation.....................
Hydrogen is abundant in the sun.
