The least dense is the oceanic crust the younger one they are only 3 miles thick.
What followings? there’s no option
Answer: We study other star systems in spaceships and big, professional telescopes
The people<span> who travel to or live in </span>Antarctica<span> fall into two main groups, those who live and work on scientific research stations or bases, and tourists. No-one lives in </span>Antarctica<span> indefinitely in the way that </span>they do<span> in the rest of the world. It has no commercial industries, no towns or cities, no permanent residents.</span>
<em><u>i</u></em><em><u> </u></em><em><u>guess</u></em><em><u> </u></em><em><u>its</u></em><em><u> </u></em><em><u> </u></em><em><u>Japan's economy</u></em><em><u> </u></em><em><u>slowed</u></em><em><u> substantially in the 1990's</u></em>