ch. 5 L-1 reading passage

What percentage of Earth's surface is covered by water?

• 75%

• 50%

• 90%

• 60%

What is the term used to describe the amount of salt dissolved in water?

• Salinity

• Density

• Viscosity

• Purity

Where are valley glaciers typically found?

• High elevations, such as mountains

• Lowland areas

• Deserts

• Coastal regions

What is the main difference between plains and plateaus?

• Plains are flat and low, while plateaus are flat and elevated

• Plains are elevated, while plateaus are low

• Plains are found only in coastal areas, while plateaus are found inland

• Plains are formed by volcanic activity, while plateaus are formed by erosion

What is the Continental Divide?

• A ridge that separates river systems flowing to different oceans

• A mountain range in the United States

• A large plateau in South America

• A valley glacier in the polar regions

What is the primary component of Earth's core?

• Iron and nickel

• Silicon and oxygen

• Carbon and hydrogen

• Calcium and magnesium

What is the lithosphere composed of?

• The crust and the upper part of the mantle

• The core and the mantle

• The atmosphere and the hydrosphere

• The inner and outer core

Glaciers are part of Earth's ___________

• atmosphere

• hydrosphere

• mantle

• outer core

Contour lines on a map connect areas that have the same__________

• lattitude

• longitude

• elevation

• salinity

The crust and the rigid part of the mantle make up the ________

• mantle

• crust

• lithosphere

• athenosphere