Which descriptions represent social consequences of sustainable land use? I. Land is zoned for housing
II. Environmental degradation stops
III. Less land use causes economic downturn

A. I and II
B. II and III
C. I only
D. III only

i need

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.

the answer would be   10%