Basics to Geology
Why does lava rise to the surface?
It is less dense than lithosphere rock.
What is Hydrology?
The study of water
Where is most of the freshwater on Earth located?
Icecaps and glaciers
What rock is formed through the cooling of magma or lava?
Igneous Rock
Earthquakes
At a subduction zone, why does the oceanic plate go under the continental plate?
It is more dense than the continental plate.
What do you call a body of rock that moves groundwater?
An aquifer
True or False? Approximately 40% of the lakes in America are too polluted for fishing, aquatic life, or swimming.
True
What are the 3 types of rocks?
Igneous, Metamorphic, and Sedimentary
When two tectonic plates collide it is called what?
Convergent Plate Boundaries
Where do volcanoes typically not occur?
Transform Plate Boundaries
Making all waterways safe for fishing and swimming is the goal for what act?
Clean Water Act
What is the different between a point-source and a non-point source?
Point-source is direct pollution from one source while non-point source is indirect pollution from many different sources.
What is the cycle undergone by rocks in the earth's crust called?
The Rock Cycle
When two tectonic plates pull apart it is called what?
Divergent Plate Boundary
How is an extrusive igneous rock formed?
From hardened lava.
The turbidity of water measures how much what is in the water?
Sediment
True or False? Each year 1.2 million gallons of untreated sewage, and storm water, are dumped into US water
False, 1.2 TRILLION!
True or False? Metamorphic rocks are formed by lava cooling and becoming a solid.
False
What is a transform plate boundary?
When two tectonic plates slide past one another.
Mechanical or chemical breakdown of rocks into smaller pieces is called what?
Weathering
What happens to dissolved oxygen levels in the presence of decomposing microbes?
They decrease
What is the contamination of water bodies?
Water Pollution
What type of rocks contain fossils?
Sedimentary
True or False? Volcanoes can NOT occur at hot spots.
False