Answer:
Date Significance Soviet Union Mission
August 21, 1957 First intercontinental ballistic missile (ICBM) R-7 Semyorka
October 4, 1957 First artificial satellite First signals from space Sputnik 1
November 3, 1957 First dog in orbit (Laika) Sputnik 2
January 31, 1958 First US satellite, detection of Van Allen radiation belts
Explanation:
Answer: cools down and keeps going
Explanation:
In is a lot easier because it uses 10s.
Answer:
Deposition
Explanation:
Deposition is the process of sediment being placed in a new location.
