Answer:
double-blind procedure.
Explanation:
Double-blind procedure -
It refers to the method of experiment , where the experimenters as well as the participants do not have any information about the experiment , is referred to as a double - blind procedure .
The method is adapted to eliminate any discrimination , which would make the experiment to yield very accurate results .
Hence , from the given scenario of the question ,
The correct answer is double-blind procedure .
Area formula for a circle is pi *r^2
circumference is pi * d
22.6/3.14 is 7.197= diameter
radius= 3.5985
pi * (3.5985)^2 =40.66
area is about 40.66 square inches
Answer:
Waste rock and mine tailings can result in releases to water and soil. Acidic drainage and the leaching of metals from the mine workings and mine wastes may occur at metal mines.
Explanation:
