When a solution is more concentrated outside of a cell than the cytoplasm, what happens?
a. water leaves the cell, causing the cell to burst.
b. the solute enters the cell, causing the cell to burst.
c. water leaves the cell, causing the cell to shrivel up.
d. the solute leaves the cell, causing the cell to shrivel up.

C. Water leaves the cell, causing the cell to shrivel up.

Explanation:

When a cell is placed in a hypertonic solution which has more solute concentration than the cytoplasm, water from the cell leaves towards the outer solution to balance the concentration.

Movement of water from the cell to the outer solution is called exosmosis. The loss of water from the cytoplasm makes the cell to shrink.  

where is the option.let me know

correct answer is option a.

tropopause, stratopause and mesopause have all in common aspect that is point of maximum temperature in its layer of the atmosphere. all layers of atmosphere observe abrupt change in temperature. tropopause is the boundary between troposphere and stratosphere. stratopause is the boundary between stratosphere and mesosphere. mesopause is the boundary between mesosphere and thermosphere. these all boundaries are ranges between altitude of 0 to 80 km.