Science Final Review

What is the pH value range for neutral solutions on the pH scale?

• 0-6

• 7

• 8-14

• None of the above

What percentage of Earth's water is freshwater?

• 2.5%

• 96.5%

• 0.9%

• 30.1%

Tags

NGSS.MS-ESS2-4

Which of the following represents the largest percentage of freshwater on Earth?

• Glaciers and ice caps

• Groundwater

• Lakes

• Rivers

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

What percentage of Earth's total water is contained in the oceans?

• 2.5%

• 96.5%

• 0.9%

• 30.1%

Tags

NGSS.MS-ESS2-4

What is brackish water?

• Water with high salt content

• Water with no salt

• Water that is a mixture of freshwater and saltwater

• Water found only in glaciers

What are aquatic ecosystems?

• Environments that contain living things and depend on air for survival

• Environments that contain living things and depend on water for survival

• Environments that contain non-living things and depend on soil for survival

• Environments that contain non-living things and depend on water for survival

Which of the following is NOT a type of aquatic ecosystem?

• Freshwater ecosystems

• Saltwater ecosystems

• Desert ecosystems

• Both A and B are types of aquatic ecosystems

What are two potential threats to aquatic ecosystems?

• Pollution and overfishing

• Deforestation and urbanization

• Drought and wildfires

• Earthquakes and volcanic eruptions

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What are the four main spheres of Earth as mentioned in the study guide?

• Hydrosphere, Atmosphere, Biosphere, Cryosphere

• Lithosphere, Biosphere, Atmosphere, Hydrosphere

• Troposphere, Stratosphere, Mesosphere, Thermosphere

• Biosphere, Hydrosphere, Atmosphere, Exosphere

Which sphere includes all of the water on Earth?

• Atmosphere

• Lithosphere

• Hydrosphere

• Biosphere

Tags

NGSS.MS-ESS2-4