Answer:
There are 54 countries in Africa, today.
Explanation:
Answer:
taking data from a population rather than a specific group of people to gather information from
(random and most representative on a large scale of people)
Answer:
The consequences of the crisis were many and varied. Relations between Cuba and the Soviet Union were on shaky ground for some time after Khrushchev's removal of the missiles, as Fidel Castro accused the Russians of backing down from the Americans and deserting the Cuban revolution.
Explanation:
Answer: Massive star supernovae
2. Can only occur in a galaxy with ongoing star formation.
3. Black hole or neutron star left behind.
White dwarf supernovae
1. Star explodes completely, leaving no compact object behind.
4. Can only occur in a binary system.
5. Can occur in a very old star cluster.
6. Spectra always lack strong hydrogen lines.
7. Has a brighter peak luminosity.
Explanation: A supernova is a bright explosion of a star as it dies off. Supernova can occur due to the star losing the heat at its core which eventually makes it collapse. This is the type of supernova formed when massive stars die. They occur in a galaxy with ongoing star formation and a black hole or neutron star left behind.
Supernovae can also be occur when a star orbits another and crashes into another. This is what occurs in a white dwarf
. This is part of a binary system, can occur in a very old star cluster and leaves no compact object behind.
I believe the answer is true but i’m dumb so :/
