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.
Answer:
Water Erosion
Explanation:
The "Blue Caves" in Greece are a series of sea caves, also known as a littoral caves. Littoral caves are shaped primarily by wave action in the form of water erosion.
Rotate the Earth counter clockwise in the direction shown by the arrow to mimic the passing of time<span>. Show that the Full </span>Moon<span> rises at 6pm, is </span>highest in the sky<span> at midnight and sets at 6 am. It is not visible in the </span>sky<span> at noon because the Earth itself blocks the </span>Moon<span> from view.</span>
Answer:
The answer is (A) ( They made them dance on deck)
