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8Sci_Earths Oceans
Earth's Oceans (Tabat)
| Question | Answer |
|---|---|
| What temperature zone in the ocean is warm and sunlit? | surface zone |
| What eventually happens to the water in a river basin? | it drains to the ocean |
| What is a measure of the amount of dissolved solids in a given amount of liquid called? | salinity |
| What is the importance of dissolved gases in the ocean? | they help provide oxygen for aquatic animals |
| What elements are salt from our oceans composed of? | sodium and chlorine |
| What is the hydrologic (water cycle)? | the movement of water between the various global water reservoirs |
| Of the 74% of Earth's surface that is covered in water, what contains the most water? | oceans |
| How are the oceans connected to Earth's water reservoirs? | precipitation and evaporation |
| What are the three reasons the ocean is salty? | evaporation, volcanic eruptions & rivers & streams carrying dissolved solids to the ocean |