A numerical expression includes numbers and operations, so if youre wanting a numerical expression for the number 20, all you have to do is add, subtract, multiply, or divide numbers to equal that.
For example, 5+15=20, 4*5=20, 80/4=20, 29-9=20
Answer:
I'm not so sure about this but I think it's the vacuole
Answer:
Scientific investigation is a quest to find the answer to a question using the scientific method. In turn, the scientific method is a systematic process that involves using measurable observations to formulate, test or modify a hypothesis.
Explanation:
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Answer: Hydrolysis - using water to split a molecule that has formed via a condensation reaction
Photolysis - using the energy from light to split a molecule (ie, ultraviolet light depleting the ozone layer)
Explanation:
IT IS UP THERE