Answer:Periods of Earth's history with extensive sea ice result in enhanced albedo
Explanation:
Answer:
c. Graded beds are evidence of a decrease in current velocity during deposition whereby coarse sediments settle out first, followed by finer sediments as the velocity decreases over time.
Explanation:
Explanation:
Using a few inexpensive, energy efficient measures can reduce your energy bill and, at the same time, reduce air pollution. Heating and cooling systems use more energy than any other systems in American homes. Natural gas and electricity are used to heat most American homes, electricity to cool almost all.