Answer:
a planet
Explanation:
If planetesimals, objects that combined to form protoplanets, were to collide head on in the early solar nebula, they would shatter to the point where they would be unable to grow into a larger size, a protoplanet. A protoplanet is a massive object that will eventually become a planet.
Where danger is and how to avoid it as well as to locate other whales
Adding thermal energy
Performing work on the system
Answer:
17 - length of the fork
18 - number of turns
19 - material of the fork
Explanation: