Which of these is likely to happen in the absence of the stratosphere? We may have to bear the impact of a meteorite.
We may not experience storms, winds, and clouds.
Mixing of air due to convection currents may stop.
Increased exposure to radiation may cause skin ailments.

Taylor's experiment: 1. accurately measured the speed of light 2. locked together the phases of two light sources so that the interference pattern would not shift 3. showed that man's reaction time was much slower than the speed of light 4. showed that individual photons have wave characteristics

Matt is driving down 7th street. he drives 150 meters in 18 sec. assuming he doesn’t slow down or speed up, what is his speed?

When an object is heated it contracts. a. true b. false