Answer:
The answer is ecotones
Explanation:
Ecotone = Border between two biomes, like the end of a river and beginning of an ocean biome, or a terrestrial and aquatic biome.
The sentence with the correct freshwater biome is as follows:
Thus, the correct option is B.
A Biome may be defined as a very large area that is characterized by a particular type of vegetation. Apart from vegetation, soil, wildlife, and climate also describe the features of a biome. Some examples are tropical rainforests, coral reefs, grasslands, etc.
An ecotone is the transition zone where two ecosystems meet each other. It is the zone that is present between two ecosystems. The biodiversity of ecotones is significantly found to be the highest as compared to individual locations due to the edge effect.
In an ecotone, characteristics of both the ecosystems are present, hence ecotone has high biodiversity. For example, Savannah is the transition zone between forest and grassland ecosystems.
Therefore, Deltas and estuaries are each ecotones where rivers end and oceans begin. Thus, the correct option is B.
To learn more about Ecotones, refer to the link:
https://brainly.com/question/14846354
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