Lesson 5: What Do You Know?

True or False

Statement
   
1 The primary source of energy for ocean and atmosphere circulation and the biosphere is the Sun’s radiation.
   
2 Earth is always in energy balance: energy received (primarily from the Sun) equals energy emitted.
   
3 Our climate determines the energy balance of Earth.
   
4 The average temperature of Earth has been constant over time.
   
5 The higher the temperature of an object or substance, the greater the intensity of radiation it emits.
   
6 Water vapor in the atmosphere cools Earth.
   
7 In July, Earth is closest to the Sun.
   
8 Sea surface temperature and currents are used to make forecasts of fishing conditions in the ocean.
   
9 Satellites in space measure the temperature of ocean water by its color: light blue is warm and dark blue is cool.
   
  
   Overall Score (%)
   
Learn more about energy balance in the Student Guide, Lesson 5 .