Question

Lentic ecosystem occurs in
a. Rainwater
b. Running water
c. Standing water
d. Gravitational water

Answer 1

Hint: Ecosystem means the geographical area in which plants, animals and other organisms along with abiotic factors like air, land, soil work together.

Complete Answer:
A lentic ecosystem refers to a body of standing water, ranging from ditches, seeps, ponds, seasonal pools, basin marshes, and lakes. It also includes wetlands. The lentic system usually does not have a water source because they are formed in places where the groundwater reaches the earth's surface.
- Option A: Rainwater does not form the ecosystem as it is just made up of water drops . Therefore, this option is incorrect.
- Option b: Running water or freshwater communities are known as lotic communities. Lotic means running water. Examples include rivers and streams. Therefore, this option is incorrect.
- Option c: Lentic ecosystem occurs in standing water. It consists of ponds, lakes, wetlands. Therefore, this option is correct.
- Option d: gravitational water moves through the soil under the influence of gravity and must be removed from the soil before this can attain field capacity. Therefore, this option is incorrect.

Thus, the correct option is C) standing water.

Note: Deeper waters, such as lakes, may have layers of ecosystems, influenced by light. Ponds, due to their having more light penetration, are able to support a diverse range of water plants.