How is stratospheric ozone created? A. Radiant energy from the sun breaks apart oxygen molecules freeing single oxygen atoms that recombine into ozone
B. When ultraviolet radiation passes through a depleted ozone layer it acts on oxygen at ground levels creating ozone
C. Ozone is formed in when sulfur and nitrogen oxides combine with water in the atmosphere
D. Ozone created from NOx and VOC gases rise from low altitudes into the stratosphere and form the ozone layer

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to.in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

Abicycle slows down when the rider applies the brakes. what type of energy transformation is involved in this example? a. kinetic energy into heat energy b. heat energy into potential energy c. potential energy into kinetic energy d. kinetic energy into mechanical energy

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2