Lesson 5: What Do You Know?

True or False


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.
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Learn more about energy balance in the Student Guide, Lesson 5 .