Answer: C. Gravel
Gravel has the highest permeability.
The electron is.
The electron is the subatomic particle most famous for characteristic behaviors observed in the context of chemical bonding.
The correct option is this: HAS THE CLAIM BEEN TESTED NUMEROUS TIMES BY MORE THAN ONE SCIENTISTS.
For a claim to be accepted has been valid in the science world, it must have been tested several times by many scientists who obtain the same results. Having a uniform result about a phenomenon is usually considered an important factor when examining the validity of a claim.
Turbines. Invented by Charles Parsons. I know I'm in middle school, but we are just learning about hydroelectric power.
Explanation:
In my view, all factors are equally responsible for this.