Answer:
model of mountain formation
Explanation:
The formation of mountains takes millions of years. This formation of mountains involves so much processes that do not occur quickly.
Hence, a model that can adequately show something that happens very slowly is the model for the formation of mountains.
they both have 4 sig figs:)
true
Name the element: Beryllium
Number of shells: 4
Valence electrons: 2
Answer: which*
