Which U. S. state is NOT separated from Canada by a natural border? A. Michigan
B. Ohio
C. North Dakota
D. Pennsylvania

Which of the activities listed below could limit global warming by slowing the increase in atmospheric carbon dioxide levels? view available hint(s) select all that apply. a. replacing fossil fuels with nuclear energy b. burning vegetation to clear land for agriculture c. limiting soil erosion so organic matter takes longer to decompose d. choosing a fuel-efficient car, or bicycling to school or work e. using more electrical appliances and cars f. cutting down forests to build houses

Which season occurs in the northern hemisphere when the sun is at its lowest point in the sky

How can minerals crystallize from materials dissolved in water? check all that apply.