Wells drilled by a nonprofit called Water for South Sudan use a pump that can provide up to 5,500 gallons of water per day. Use this total amount to calculate the following: How many gallons per day per person could the well produce for a village with a population of 850 if every gallon went to domestic use?

How does your number to Question 1 compare to to the 0.5 gallons of water per day accessible in some areas of the world?

How does your answer to Question 1 compare to the 80 - 100 gallons of water used per day by the average American?

If you only had the amount of water you calculated in Question 1 to use each day, how would you prioritize using it?

scientific laws are the result of testing theories and proving them to be facts.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

answerdmitry mendeleyev made a workable classification of the elements