Answer:You didn't provide examples
Explanation: Groundwater can cause erosion under the surface as it moves through the soil. During the movement an acid is formed which what causes erosion and deposition.
Hope that helps
Answer:
Speed is measured over time.
Explanation:
Answer for your question is;
2,6 = 8
The first shell is 2 electrons the other shell is 6 electrons
C - straight line
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