Air pollution comes from

atmospheric circulation
human industrialization
biogeochemical cycles
the sick and diseased

Dalton’s model of an atom is the best described as a) a solar system b) a solid sphere c) a cloud d) a scoop of chocolate chip ice cream

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

What should the power status of a circuit be when measuring resistance with an ohmmeter?