Answer:
Using coal to generate electricity
Explanation:
APEX
Answer:
When you chew, it is a sort of digestion, and it starts the whole process.
B. spleen
C. pancreas
D. stomach
b. marine
c. estuaries
d. freshwater
Freshwater ecosystem is part of ponds, lakes, streams and rivers. i.e, option D is correct.
Ecosystem, the complex of living organisms, their physical environment, and all their interrelationships in a particular unit of space.
Freshwater ecosystems are a subset of Earth's aquatic ecosystems. They include lakes, ponds, rivers, streams, springs, bogs, and wetlands. They can be contrasted with marine ecosystems, which have a larger salt content.
Learn more about freshwater ecosystem here:
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