Answer:
pic 1 red giant, a star whose outer shell has expanded and cooled
pic 2: supernova, a shock wave produced by extremely high temperatures
pic 3: black hole, a high mass star that has collapsed from gravity
pic 4: white dwarf, a low mass star that has shed its outer layers
Explanation:
The picture is not comming up
Answer:
One should use less energy and embrace alternative energy sources such as wind or solar energy. Will try to give what is taken away from the earth by giving back to it. Such as afforestation should be done
Explanation: