Which of the following rocks makes up the bulk of Earth’s continents?

Each higher number on the Richter scale represents a 10-fold increase in the amount of ground movement in an earthquake.

A nurse in the emergency department is caring for a patient who was found unconscious with a suspected heroin overdose. The patient has shallow breathing, a respiratory rate of 5 breaths per minute, and pinpoint pupils. After administering naloxone (Narcan), which of the following should the nurse closely monitor? 

The oceans contain much more carbon dioxide than does Earth’s atmosphere.

Plant life in the upper, sunlit water tends to reduce the concentration of carbon dioxide and increase the concentration of dissolved oxygen gas.

Waves “break” as they approach a shore due to the friction between the bottom and the moving water.

Water evaporating from the oceans is salty.

Which of the following statements about a continental shelf is FALSE?

Tree roots expand as they grow, eventually breaking through a sidewalk. This is an example of

Atmospheric heating produced by the absorption of solar energy and reemission of infrared energy is called the greenhouse effect.