Geology Chapter 5-6
Water falling in Illinois would ultimately end up where?
gulf of mexico
At which of the following locations is deposition occurring?
it occurs on the insides of the curves- B, D
At which of the following locations is erosion occurring?
it occurs on the outsides of the curves- A, C, E
What do we call mudflows produced by the melting of snow and glaciers on volcanoes?
lahars
Mauna Loa in Hawaii is an example of which type of volcano?
shield voncano
Which volcano type involves layers of pyroclastic debris and lava flows?
stratovolcano
Mt. St. Helens in Washington is an example of which type of volcano?
stratovolcanoe
trunk stream
the primary river flowing out of a drainage basin
Why are so many volcanoes found on the Ring of Fire around the margin of the Pacific Ocean?
Many subduction zones occur there.
trunk stream
Mississippi River
Where does a meandering river run the fastest?
On the outside of a bend
If you were running water through a hose, how would you increase the discharge of water coming from the hose?
Turn up the water at the faucet
Where is the majority of lava extruded?
at divergent plate boundaries
Which of the following loads are most likely to consist of heavy rocks and boulders?
bed load
tributary
big horn river
Which volcano type is composed mostly of pyroclastic debris?
cinder cone
What is the floodplain?
A flat area next to the river carved out by the rivers
What is the role of a drainage basin?
A drainage basin is the area drained by a river and all of its tributaries.
What would the longitudinal profile of a river flowing from a gentle valley into an ocean look like?
A gently downward sloping line
Which of the following magma types will usually flow the fastest?
Basaltic
Which of the following lists magma types in order of increasing viscosity (LEAST viscous first)?
Basaltic, andesitic, rhyolitic
Choose the best answer. Which would increase during a flood, discharge or velocity?
Both discharge and velocity will increase because there is more water flowing and it is flowing faster. Submit
Below are real-world examples of the three different types of volcanoes. Match each scene with its respective description. Which of the following best describes the type of volcano in the image?
Cinder Cone- Volcano with hole Shield- no peak. looks like a hill Composite- high peak with sharp point
Which of the following volcanic types typically produces small, steep-sided structures composed of pyroclastic material?
Cinder Cones
Which of the following volcanic forms best describes large, nearly symmetrical structures composed of interbedded lavas and pyroclastic material primarily deposited from a central vent?
Composite Volcanoes
Which portion of the stream is the most likely to become an oxbow lake in the near future?
D, the points where two different areas of the river are close to closing into a lake
Which of the following statements about drainage basins is FALSE?
Drainage basins only contain one river.
Which of the following statements about deposition and erosion around meander loops is true?
Erosion occurs where water is moving the fastest along the outside of the loop. Deposition occurs where water is moving the slowest along the inside of the loop.
What are volatiles?
Gases trapped in magma
What is the difference between magma and lava?
Magma is found below the Earth's surface, lava is found on the Earth's surface.
Which of the following is NOT an example of a base level for a river?
Rapids
Which rivers have the highest gradient?
Rivers moving down mountains
Which of the following is FALSE about magma?
Tectonic plates move around on an underground ocean of magma.
Why are shield volcanoes wider than composite volcanoes?
The lava that flows out of shield volcanoes is more fluid than the lava that flows out of composite volcanoes.
divide
appalachian mountains
What happens to rivers when they reach their base level?
They often form alluvial fans or deltas.
In which of the following tectonic plate settings are volcanoes typically NOT found?
Transform Fault
divide
a boundary, usually a hill or mountain, where water will flow in opposite directions on either side
tributary
a river that feeds into another river
watershed
an area in which all water falling in it flows out through one location
If you dip a glass of water into a river and passed the water through a very fine sieve that blocked all sediment grains from passing through, what will you be left with?
dissolved load
watershed
missouri river basin
At which plate boundary is more viscous lava found?
oceanic subduction zones
Which type of magma typically results in the greatest explosive events?
rhyolitic
Which of the following loads would make a river appear murky or dirty?
suspended load
In which cycle do rivers NOT play an important role?
tectonic plates
