The zone in a stratified lake that may have low or no dissol

The zone in a stratified lake that may have low or no dissolved oxygen is called?

a)

Epilimnion

b)

Thermocline

c)

Vadose

d)

Hypolimnion

Solution

a) Epilimnion

The upper layer of warm water. It contains high desolved oxygen due to warm water and less density.

b) Thermocline

It is cooler middle layer which contains moderate level of dissolved oxygen.

c) Vadose

The vadose zone, also termed the unsaturated zone, is the part of Earth between the land surface and the top of the phreatic zone.

d) Hypoliminon

It is lower layer which contains lower or very little dissolved oxygen due to less temperature and high density.In stratified lakes, the hypolimnion receives little oxygen from atmospheric diffusion and is too dark to support oxygen-producing plant life.

Therefore

(d)Hypoliminon is the correct answer.