Which of the following statements about ozone are true? Select the two correct answers.(1 point)
Responses
Ozone at ground level is harmful to human health.
Ozone at ground level is harmful to human health.
Ozone is helpful for reducing smog levels.
Ozone is helpful for reducing smog levels.
Trees and plants help to decrease levels of ozone in the atmosphere.
Trees and plants help to decrease levels of ozone in the atmosphere.
Most ground level ozone is released by vehicles.
Most ground level ozone is released by vehicles.
Ozone in the upper atmosphere protects Earth from the sun's rays.
Ozone at ground level is harmful to human health.
Ozone in the upper atmosphere protects Earth from the sun's rays.