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How many subshells are there in the shell with n = 4?
Ethanol
A type of alcohol that is produced when corn, sugarcane, and other plant material is soaked in ammonia, fermented, and distilled.
Hydroelectric Dams
Structures built across rivers to control water flow and generate electricity through the movement of water through turbines.
Greenhouse Gases
Gases in Earth's atmosphere that trap heat, including carbon dioxide and methane, contributing to global warming and climate change.
Sediment
Particles of rock, organic material, or minerals that are transported and deposited by wind, water, or ice, often forming sedimentary layers.
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