1. We know the earth is getting warmer because temperatures have risen all around the globe. Also, the Arctic is melting.
2. The Earth temperature changes because of green house gases and harmful gases being sent into the atmosphere.
3. The greenhouse effect is a process that occurs when gases in Earth’s atmosphere trap the Sun’s heat.
4. Factories.
5. It could cause more flooding and a rise of warmer temperatures.
6. Permafrost is ground that continuously below 0 degrees Celsius for two or more years.
Hope this helps!
Answer: Aksum
Explanation:
The Aksum Kingdom was located in Eastern Africa in the area of the present-day countries of Ethiopia and Eritrea.
Answer:
about 5,200° Celsius (9,392° Fahrenheit)
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.