<span>B.punctuation and grammatical errors<span /></span>
Answer:
The sidebar tells us what Earth scientists are actually doing about the risk of an asteroid impact.
Explanation:
The main part of the page discusses how frequently the moon is hit by rocks; how most rocks are too small to make it past Earth's atmosphere; how the rocks that do make it all the way to Earth's surface are usually pretty small and don't hit anything important; how screwed we would be if a massive rock – like an asteroid – made it to Earth's surface.
The sidebar says that scientists are understandably worried enough about these asteroids – they "feel the danger is to great to ignore" – so they're keeping a lookout for asteroids that might be on a collision course with Earth.
"means of forcing language change" is the statement among the elements given that <span>not one of the three purposes of the dictionary discussed in this section. The correct option among all the options that are given in the question is the second option. I hope the answer comes tom your help.</span>