Plate tectonics suggests that the floats and moves on the

for the first line the options are :
a) biosphere
b) lithosphere
c) asthenosphere
d) geosphere

for the second line
a)lithosphere
b) asthenosphere
c) geosphere
d) atmosphere

Plate tectonics suggests that the lithosphere floats and moves on the asthenosphere.

so the other answer is incorrect.

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.