Kate is researching air pollution and finds some information on ozone. she knows that ozone is a good thing as part of the ozone layer, so why is it also an air pollutant?
a) at ground level, ozone contributes to smog.
b) we breathe out ozone, adding it to the atmosphere.
c) ozone breaks into carbon dioxide.
d) it contributes to global warming.

When a vertical beam of light passes through a transparent medium, the rate at which its intensity i decreases is proportional to i(t), where t represents the thickness of the medium (in feet). in clear seawater, the intensity 3 feet below the surface is 25% of the initial intensity i0 of the incident beam. what is the intensity of the beam "10" feet below the surface? (give your answer in terms of i0. round any constants or coefficients to five decimal places.)

Can you match these to the correct definition

What is the kinetic energy of a baseball moving at a speed of 40 m/s if the baseball has mass of 0.15 kg?