Answer:
Movement in the mantle caused by variations in heat from the core, cause the plates to shift, which can cause earthquakes and volcanic eruptions.
Answer:
The longest time period is eons.
Answer: climate change
Explanation: less rain means less water for consumption.
The Rhine River's name is derived from a Celtic word 'Rēnos'.
Natural gas accounts for the most used source of energy in the usa. natural gas is used in homes, and to generate electricity. according to research, 37 percent of energy consumption in the USA is from this form of primary energy.
it is followed by oil,coal and nuclear energy. Wood is a rare source of energy in the country. Renewable sources of energy include solar and wind energy.