B. comet
comets only have tails because the sun is shining its light on the ice and dust behind the comet
An atom of nitrogen would contain 7 neutrons
Answer:
40% of adenine is present
Explanation:
Answer:
A chronic condition is a human health condition or disease that is persistent or otherwise long-lasting in its effects or a disease that comes with time. The term chronic is often applied when the course of the disease lasts for more than three months.
Explanation: