How does radiation from the sun spread throughout Earth's atmosphere? - through convection currents
- through conduction currents
- through solar panels
- through hot water systems

True or false graphs must include scales that increase by the same amount

The ozone hole appears in antarctica during

The astronauts on the space shuttle flights experienced an acceleration of 29 m/s2 (about 3 "g's") during lift-off. what upward force must the astronaut's seat apply to the astronaut in order to cause this acceleration? assume the astronaut's mass is 70 kg, and compute this force when the acceleration is near the earth's surface so their weight equals latex: mg m g .