Dark Energy explains:
How groups of objects function together, and also to keep the universe expanding
Hope this helped.
I think is the first and second!!
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Answer:
Vaccinations
Explanation:
For example, if a disease has an R0 of 18, a person who has the disease will transmit it to an average of 18 other people. That replication will continue if no one has been vaccinated against the disease or is already immune to it in their community. So if you have (for example) a vaccination then you're less likely to get it, resulting in a lower R0
Answer:
It’ll be answer D
Explanation:
Just did it on edg 2020 it’s right
