Humans interact with the environment on a daily basis in Maryland in many ways. Some common ways that humans interact with the environment in Maryland are farming, fishing, environmentalism work, hiking, biking, and also even flipping the switch of their electricity. To produce the electricity the energy must be produced through some interaction with the environment such as the burning of fossil fuels, solar energy, or wind energy.
The answer should be C. In ocean trenches
It depends on what you're asking. If angle a and b are both on a straight line, b would equal 169 degrees because the total has to add up to 180 degrees, but if they are on a right angle, b would equal 79 because it has to add up to 90 degrees.