Chapter 2~Science

Which best explains why landforms are not permanent?

• gravity pulls on landforms molding them to be spherical in shape

• once created landforms do not change

• Earth's magnetic field compresses the surface

• Landforms are shaped by erosion and uplift

Which belongs to Earth's geosphere?

• oceans

• foxes

• carbon dioxide

• mountains

Scientists believe that differences in ________ cause hot, plasticlike rock in the ashenosphere to rise towards Earth's surface.

• density

• magnetism

• weight

• composition

Which objects does the force of gravity pull together?

• dust

• stars

• metal objects

• all of these

Find the density of an object that has a volume of 20 cm³ and a mass of 56 g.

• 4.3 g/cm³

• 3.8 g/cm³

• 2.8 g/cm³

• 1.7 g/cm³

The more dense an object

• the stronger the gravitational force

• the less affect it has on the magnetic field

• the more round the object

• the weaker the gravitational force

An example of a raised, flat area is/are the _________

• Grand Tetons

• Coastal Plains

• Colorado Plateau

• Appalachain Mountains

All of the following are part of Earth's biosphere EXCEPT

• carbon dioxide

• oak tree

• wolves

• bacteria

Which helped the newly formed Earth become a sphere in shape?

• the magnetic field

• gravity

• density

• heat

The outermost layer of the Earth

• asthenosphere

• plains

• mantle

• crust