1. How do astronomers refer to stars and compare their brightness? 2. How does the sky appear to move as Earth rotates?
3. What causes the seasons?
4. How can astronomical cycles affect Earth's climate?

fire could start, buildings collapsing, and ash falling from the sky.

explanation:

this is because the buildings or plants could catch on fire and the buildings would most likely collapse. lastly ash would fall because all the burning would cause ash to fall from the sky.

hope this .

the answer is a and have a great day

the dissolution of polymer can be thermodynamically described in 2 steps.