Answer: A
Explanation:
Hot springs and geysers are tell tell signs of volcanic activity beneath the earths crust, i.e, the water is heated by the magma below it.
Are you asking how are they made or What part of the building is important
The sun and the planets formed together 4,6 billion years ago from clouds of gas and dust called the solar nebula
Answer: A.)
Explaination: its right ok