GEOLOGY100

Which of the following is the best description of what the lithosphere contains?

• continental and oceanic crust

•  

  lower mantle and outer core

•  

  upper and lower mantle

•  

  both types of crust and the uppermost mantle

Which of the following is NOT an environment in which an igneous rock forms?

•  

  all of the possible answers are environments in which igneous rocks form

•  

  intense squeezing from tectonic forces

•  

  explosive eruption of volcanic ash

•  

  cooling and solidification of lava

•  

  solidification of magma at depth

Which of the following is least at risk for geologic hazards?

•  

  on soils that expand when wet

•  

  close to, but upwind of, an active volcano

•  

  on gentle slopes away from mountains

•  

  next to a river in low areas

•  

  near an active fault

Compared to oceanic crust, typical continental crust is

• lighter in color

• more dense

• thinner

• all possinble answers are correct

Which of the following surface environments is the most likely site for deposits in this photograph?

•  

  steep mountain front

•  

  sand dunes

•  

  river channel

•  

  lake

• beach

According to the rock cycle, sediment that is being transported by a river could become a metamorphic rock after:

• solidification and burial

• melting and solidification

• deposition and burial

• uplift and weathering

What type of rock would the materials shown in this photograph produce?

• metamorphic

• igenous

• hydrothermal

• sedimentary

Which of the following are the main families of rocks?

• metamorphic

• sedimentary

• meteorites

• igneous

On this figure of a continental collision, which continent would have had subduction-related magmatism before the collision?

• the continent on the right

• the continent on the left

• neither continent

• both continents

How did the Red Sea form?

•  

  subduction of Arabia beneath Africa

•  

  transform faulting followed by a continental collision

•  

  a continental collision

•  

  subduction of Africa beneath Arabia

•  

  continental rifting followed by seafloor spreading