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Astudent conducts an experiment to determine how the amount of water given to a plant affects its growth. which of the following is not a constant or control for this experiment? a. the type of plant b. the amount of soil c. the amount of water d. the amount of time in the sun select the best answer from the choices provided a b c d

What was istanbul called before he ottomans conquered the city in the 15th century

Explain how a convection current in the earth is formed.