<span>Weather occurs in Earth's troposphere, which is "Lowermost layer" of the the Earth
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Answer:
Diffusion is the movement of a substance from an area of high concentration to an area of lower concentration.
Explanation:
Diffusion occurs in liquids and gases when their particles collide randomly and spread out. Diffusion is an important process for living things - it is how substances move in and out of cells.
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Answer: They usually run tests too see. For example, that's why they made blood tests. They take you blood from you, and run tests to see if you have a disease.
Explanation: Hope it helps!
Answer:
ask a question and predict what the outcome will be
Explanation:
when using the scientific method you always have to ask a question and make a hypothesis
