This information cannot be obtained from the text, and we need to access general knowledge: why carbon dioxide is harmful to the environment.
It is harmful, for example, because it is one of the greenhouse gases, that is a gas that traps the heat in the Earth's atmosphere and leads to a warming up of our planet (global warming). Earth's temperature should be balanced, because any changes can have catastrophic effects: warming of the planet leads to the melting of ice caps and can cause floods, for example
Answer:
Viruses are considered to be non-living because they arent
D. He has an aerator that pumps bubbles into the tank
They are ineffective against viral infections because viruses can not be treated with antibiotics.
