Correct answer
D. Urine
Explanation
Urine is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Sound travels about ___________times faster in water than in air.
A substance which increases the efficiency of a catalyst is termed as:
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The sun completes one full rotation at its equator in how many days?
Stethoscope was invented by _______ ?
During rainy season Wooden doors are difficult to open or closure because of ________ ?