Asked by Pedro Mendes da Fonseca on Jun 13, 2024
Verified
In summer, the upper and lower levels of a lake are separated by the ____.
A) limnetic zone
B) thermocline
C) littoral zone
D) lentic zone
E) eutrophic zone
Thermocline
A layer in a body of water or the atmosphere where temperature changes more rapidly with depth than it does in the layers above or below.
Upper
Generally refers to something that is located above something else or higher in position, order, or rank.
Lower Levels
Refers to the foundational or basic elements in a structure or system, often relating to the base of a hierarchical arrangement.
- Elucidate the mechanism of lake turnover and its significance for water-based ecosystems.
Verified Answer
JP
JUNED PATHANJun 15, 2024
Final Answer :
B
Explanation :
The thermocline is a layer of water in the lake that separates the warmer, oxygen-rich upper layer of water from the colder, nutrient-rich lower layer. This occurs in the summer because the sun heats up the surface water, causing it to become less dense and float on top of the colder, denser water below.
Learning Objectives
- Elucidate the mechanism of lake turnover and its significance for water-based ecosystems.