B. Healthier ecosystems. If you're talking about benefits, this is the only positive on this list. The others are listing the difficulties or downsides.
Answer:
Explanation:
When viruses cause an infection, they spread their DNA, affecting heathy cells' genetic makeup and potentially causing them to turn into cancer. HPV infections, for instance, cause the virus' DNA to combine with the host's DNA, disrupting the normal function of cells.
Ice floats<span> on water </span>because<span> hydrogen bonding makes liquid water unusually dense</span>
Maybe this helps ? Please look at the picture
