The astronomical event that represents the great serpent mound is Halley's Comet.
Studying the new world made them see that the coastlines on each side of the Atlantic are similar.
Hope this helps!
Answer:
1
Explanation:
all lunar faces must repeat per month
Answer:
Wind:
Pro -- Reduces Our Dependence of Fossil Fuels
Con -- Expensive Upfront Cost
Nuclear:
Pro -- Cheap Source of Electricity
Con -- Nuclear Waste
Solar:
Pro -- Low Environmental Impact
Con -- Land Use
GeoThermal:
Pro -- Reduces Fossil Fuel Dependency
Con -- It Could Be a Cause of Seismic Instability
Hydroelectric:
Pro -- Clean Energy Source
Con -- Carbon dioxide and Methane Emission
