Here are some disadvantages, is that nitrogen dioxide is a toxic gas and it can still be harmful when ingested by human, also critics of hydrogen fuel cells argue that although these cells do not emit carbon after burning, they give out nitrogen dioxide and other emissions.
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The answer should be; 11
The atomic mass number is found by combining the number of protons and neutrons
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I think eventually other organisms will die out as well because many herbivores feed on plants for survival, and many other animals feed on these herbivores for survival and so on (this causes a chain reaction because there is a lack of available food)<span />
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➷ It would be B. An Ion.
Ions aren't found in atoms - it is atoms that can become ions by gaining or losing electrons.
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