A pond is
A. Biome
B. Natural ecosystem
C. Artificial ecosystem
D. Community of plants and animals

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Hint:Water cycles include vital habitats such as forests, wetlands, and grasslands. Eventually, each freshwater ecosystem like ponds and lakes is dependent on the healthy continued working of ecosystems, and it is necessary for sustainable water management to understand the water cycle as a biophysical process.

Complete answer:Biotic and abiotic elements are found in a pond or lake environment. Pond and lake are aquatic environments that consist of water, dissolved minerals, oxygen, and carbon dioxide, two major components, as in other ecosystems. Solar radiation is the most energy-efficient energy source, while the biotic portion is the main example of lentic ecosystems including producers, consumers, decomposers, and transformers.
A biome is a group of plants and animals with similar environmental characteristics. You can find it around a multitude of continents. Biomes are different biological classes created by a common physical environment.
Ponds and lakes are permanent habitats with fresh water. Teaching at a depth of fewer than 2 meters is shallower. aquatic life is complex because the environment is natural.
An artificial ecosystem is not self-supporting, and without human assistance, the ecosystem will die. For instance, a farm is a plant and species-based artificial ecosystem outside its natural habitat. This environment cannot maintain itself without humans.
A habitat is a location that usually resides in plants and animals. Both plants and animals in an ecosystem communicate and form a group. The life (or biotic) culture interacts to shape the ecosystem with the unliving (abiotic environment around it.

The right answer is, therefore B-'Natural Environment'.

Note: In conservation and restoration programs, marine biodiversity can be a major concern, even as regards the management of water supplies. The main issue of wetland, river, and lake biological health led to the concept of ecological resources as the means of quantifying or estimating the importance that various natural ecosystems, including aquatic environments, have offered society.