Which of the following facts is the best evidence that humans and salamanders had a common ancestor? A) Both species eat meat
B) Both species have pharyngeal arches and slits when they are embryos
C) Both species can swim
D) Both species have skin

B

Explanation:

Look up an image of a human embryo v. a salamander embryo if you look carefully you'll see the arches and slits.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

the answer would be knowledge about cars!