Boiling point is the temperature at which a liquid boils and turns to a gas.
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It should be <em>Ultraviolet rays </em>because they are moderate in energy.
They drill too deep and find lava
Answer:
in a laboratory
Explanation:
A controlled experiment refers to the one where everything is an experiment except a single variable is held constant. A collection of information is typically taken as a control group, which is generally the ordinary state, and another group is analyzed( such as chemical reaction as per the question) in which all conditions are similar to the control group except for the variable under examination. The main benefit of a controlled experiment is that confusion over the accuracy of the results can be eliminated more easily.
