Answer:
Climate Change: Atmospheric Carbon Dioxide. The global average atmospheric carbon dioxide in 2018 was 407.4 parts per million (ppm for short), with a range of uncertainty of plus or minus 0.1 ppm. ... Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy.
A. To solve problems... I think let me know if it helps
Explanation:
In a freshwater aquatic ecosystem like a pond, the organisms in the food chain include algae, small animals, insects and their larvae, small fish, big fish and a fish-eating bird or animal
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