Peter the Great was Tsar of all Russia from 1682-1721 and then emperor of Russia from 1721 until his death in 1725.
I have read but what is it about?
I believe that the answer would be because of a lack of rain. Hope this Helps:)))
D. When they finished their task
Answer:
"A randomized controlled trial (or randomized control trial;[2] RCT) is a type of scientific (often medical) experiment that aims to reduce certain sources of bias when testing the effectiveness of new treatments; this is accomplished by randomly allocating subjects to two or more groups, treating them differently, and then comparing them with respect to a measured response. One group—the experimental group—receives the intervention being assessed, while the other—usually called the control group—receives an alternative treatment, such as a placebo or no intervention. The groups are monitored under conditions of the trial design to determine the effectiveness of the experimental intervention, and efficacy is assessed in comparison to the control. [3] There may be more than one treatment group or more than one control group. "
Explanation:
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