Why does Earthquakes occur?
1 answer:
Shifting plates, underwater volcanoes. many different variables come in play
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Also water H2O is made of H+ and OH- ions. so when an acidic substance is added to water the concentration of H+ ions increase.
Answer: 1- Alkali metals
2- Noble gases
3- Halogens
Explanation:
Answer: I would go with D.
Explanation: Sorry if it is incorrect