<span>Steel that is strong but cheap could be used for bridges and skyscrapers because for something needed to be so dependable,it would of had to go through extensive quality control. And the steel producer would have to prove it can hold up and explain why it's cheap.</span>
Answer: Photosynthesis is the process by which plants and some microorganisms make substances like carbohydrates. It is an endothermic (takes in heat) chemical process that uses sunlight to turn carbon dioxide into sugars. ... Green plants build themselves using photosynthesis. Algae, protists and some bacteria also use it. Cellular respiration is what cells do to break up sugars to get energy they can use. Cellular respiration takes in food and uses it to create ATP, a chemical which the cell uses for energy. Usually, this process uses oxygen, and is called aerobic respiration.
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I believe it's C.) A compound is composed of two or more elements in a fixed ratio.
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Hope this helps!
Product means multiply, so its 11y
