Answer:
Carbon Dioxide / Gas
Explanation:
When carbon is in the atmosphere it is usually in the form of molecules of carbon dioxide that is released by living organisms such as humans, plants, animals etc and it is a gas.
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The answer would be ionized.
Explanation: When protons don't equal electrons, an atom is considered ionized.
D. collecting sperm
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Your answer will be DNA Pol 1.
This is an example of biotechnology because it seeks to solve a societal problem using biological entities.