A. Rain water
B. Heavy water
C. Tap water
D. None of these
Submitted by: Munwar Ali Sohu
Correct Answer: Rain water ✔
Last Updated: October 25, 2019
A. Rain water
B. Heavy water
C. Tap water
D. None of these
Submitted by: Munwar Ali Sohu
Correct Answer: Rain water ✔
Last Updated: October 25, 2019