Answer:
Argon- a chemical element
Water- polar molecule
Nitrogen- chemical compound
Uranium- chemical element
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Explanation:
In conclusion B. water is a molecule
Answer:
Explanation:
The density of a liquid determine if it will float or will in another liquid. It will float if it is more dense than the liquid it is placed in
Prokaryotes do not contain membrane, and eukaryotes do contain membrane.
Answer:
Nitrogen fixing bacteria is a type of beneficial bacteria (Cyanobacteria) which has the ability to fix the atmospheric nitrogen into ammonium and nitrates form. This atmospheric nitrogen cannot used by the plants so these bacteria fixes it. This is a symbiotic association between plants and bacteria in which both gets benefit. This nitrogen used by the plants and produces more vegetation cover which is a food source of herbivores such as rabbit.
