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Seventh Grade (Grade 7) Oceanography and Hydrology Questions

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Grade 7 Oceanography and Hydrology
The rise and fall of water on earth is caused mainly by
1. the moon's gravity.
2. the Earth's tilted axis.
3. the moon's phases.
4. changes in the weather
Grade 7 Oceanography and Hydrology
Grade 7 Oceanography and Hydrology
A delta is made up of sediments
1. deposited at the mouth of a river
2. deposited on the inside of a meander loop
3. deposited at the headwaters of a river
4. deposited on the outside of a meander loop
Grade 7 Oceanography and Hydrology
What is the unit of measurement for ocean water density?
1. $g/(cm^3$
2. $g/m^3$
3. $(kg)/m^3$
4. none of the above
Grade 7 Oceanography and Hydrology
Ocean currents are caused by
1. winds and earthquakes
2. volcanoes and tides
3. winds and density
4. tides and water density
Grade 7 Oceanography and Hydrology
Grade 7 Oceanography and Hydrology
Grade 7 Oceanography and Hydrology
Earth's hydrosphere is best described as the
1. relatively thin layer of rock found above Earth's mantle
2. hot liquid rock located in Earth's outer core
3. very dense rock located in Earth's inner core
4. all of Earth's water
Grade 7 Oceanography and Hydrology
Grade 7 Oceanography and Hydrology
What is the process that continually adds new material to the ocean floor called?
1. continental drift
2. subduction
3. seafloor spreading
4. earthquakes
Grade 7 Oceanography and Hydrology
Which of the following factors affect ocean water density?
1. pressure
2. temperature
3. salinity
4. all of the above
Grade 7 Oceanography and Hydrology
Which of the following choices are warning signs of a tsunami?
1. Earthquake
2. Falling and rising water levels
3. Volcano eruptions
4. Meteorite impact
5. All the above
Grade 7 Oceanography and Hydrology
Grade 7 Oceanography and Hydrology
What is the process in which a gas changes into a liquid?
1. precipitation
2. condensation
3. evaporation
4. transpiration
Grade 7 Oceanography and Hydrology
Grade 7 Oceanography and Hydrology
Grade 7 Oceanography and Hydrology
Detection buoys help monitor the oceans for potential tsunamis. Which best describes what the buoys monitor?
1. changes in sea level
2. changes in water chemistry
3. changes in animal migration
4. changes in weather patterns
Grade 7 Oceanography and Hydrology

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Grade 7 Oceanography and Hydrology
The diagram shows water flow in a meandering river channel. Which of the following best explains why water flows in the river channel?
1. gravitational force
2. energy from the sun
3. differences in water salinity
4. energy from the Earth’s interior
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