Describe how water may be treated before it is used by people?

P. S - This is a science question.

The Washington Monument is 169.20 meters tall. A worker assigned to the restoration of the Washington Monument is checking the condition of the stone at the very top of the monument. A nickel with a mass of 0.005 kg is in her shirt pocket.

An object in the sky brightens suddenly, but shows no hydrogen lines in its spectrum. it is most likely a (n) :

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field?

Permafrost characterizes the biome called

A weather station is located 300 miles directly east of a second station. winds at the eastern station are blowing from the south. winds at the western station are blowing from the north.

What uses electricity

How do the elements in the Noble Gas family compare?

The magnetic field strength within a long solenoid isb=4.0t t, where t is time in seconds. if the radius of thesolenoid is1.0 cm, what is the magnitude of the non-coulomb force that acts on a6.0 c charge a distance6.

Which of these is not a conservative force and does not have a form of potential energy connected with it?

What is the effect of food color in the amount of food fish eat