Which of the following would be the best attention-getter for a speech encouraging people to take up rappelling?

a tell a story about rappelling into a cavern that can't be reached any other way.
b state that 13 percent of all recreational fatalities occur while rappelling.
c outline the rappelling process.
d ask the audience if they've ever been rappelling.

answer: b. the moon is much smaller than the earth.

explanation:

it starts off by comparing the earth and venus. it also only says one sentance about the moon which make it the odd one out. in conclusion the answer is b.

answer: b (host)

viruses use the cells of living organisms to reproduce. the cell which is used by virus is called as "host cell". it is a living cell in which virus multiplies, example bacteria, plant or an animal cell.

in this, the virus is a parasite, which uses host cell for its benefit (reproduction) by using the cell machinary of host cell.