What did the U. S. government fear the Soviet Union would do after the launch of Sputnik in 1957? launch missiles at America from space use satellite technology to spy on America from space be the first nation to land on the moon, beating America access secret American space technology

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2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.

what are two things that greatly the american economy after the war? the huge buildup of u.s. military the beginning of the korean conflict the creation of the gi bill the marshall plan for nations