The Grand Canyon is a Canyon that exist where an ancient river once flowed. The hydrosphere (all of water on earths surface.) Slowly eroded away at the rock of the grand canyon until a Canyon was formed this water evaporated into the atmosphere then percerpertated back down creating a cycle that ended with the formation of the grand canyon.
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D. There will always be waste produced that can be used for energy.
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Biomass energy is a renewable energy source because its does not have limited supply. We can always grow trees and crops, and waste will always exist.
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For normal goods, the income effect and the substitution effect both work in the same direction; a decrease in the relative price of the good will increase quantity demanded both because the good is now cheaper than substitute goods, and because the lower price means that consumers have a greater total purchasing power.
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i have put an image for a diagram of the heart in the answers becuase you did not provide a diagram so i hope this helps
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