I need help ( ik these answers are wrong because i try doing them but i just don’t get it)

Forests and meadows are often cut down to make way for farms or large number of new homes. what are some of the elements of ecosystems that are lost when plants in these areas are removed?

Awoman's basketball has a circumference between 28.5 and 29.0 inches and a maximum weight of 20 ounces (two significant figures). what are these specifications in units of centimeters and grams?

Witch two conditions can limit the usefulness of the kinetic molecular theory in describing gas behavior?