All of the are false lowest it can be without a human ear picking up is 19 hertz
The correct answer is option B. A and B only
Non point source pollution is a greater threat than point source pollution because non point source pollution disrupts the water cycle.
No, they cannot be sure because the man has short eyelashes so the children each get characteristics from each parents so some may have long eyelashes and some may have short eyelashes.
