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.
but arguing that students can avoid injuries if they are careful and use the right equipment
Option D.
<u>Explanation:</u>
In the first essay that was written Sharil, she claimed that rock climbing should be introduced in her school as a physical activity for the fun and to make bodies do physical exercise.
But with the new information that she came across about these activities can cause injuries, Sharil said that these injuries could be avoided if students are more careful and use proper equipment.
