(Basic) kinetic energy and potential energy
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Lack of light and animals affect the rate of photosynthesis
Answer: Dip tube. This tube, located at the top of the tank, serves as the entry point for water as it flows into the tank. The water then travels to the bottom of the tank, to the area known as the combustion chamber, where the heating process begins.
Explanation: Thats what the internet says, and the internet is almost always right, hope you get it right.
According to the Big Bang theory, the universe was once very dense and is now expanding.