Which two body systems are most affected when a person is participating in a marathon running event? A. endocrine and digestive
B. Endocrine and muscular
c. skeletal and digestive
d. skeletal and muscular

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 .