Minerals & Rocks
When magma cools quickly, what kind of texture does rock have?
fine-grained
The potential harmful effects of mining can be reduced by:
a) flushing mines with water
b) strip mining
c) reclamation of the land
d) using more metals
c) reclamation of the land
Partially decomposed plant material forms?
coal
How do gas giants differ from terrestrial planets?
mostly made of gasses
larger than terrestrial planets
Where does sea-floor spreading take place?
a) oceanic volcanoes
b) mid-ocean ridges
c) transform boundaries
d) convergent boundaries
b) mid-ocean ridges
What are the main categories of sedimentary rock?
a) extrusive and intrusive
b) clastic, chemical & organic
c) felsic and mafic
d) foliated and non-foliated
b) clastic, chemical & organic
What kind of mines are open pit and quarry mines? (choose one)
shaft; slope; surface; OR subsurface
surface mines
Moving information from a curved surface to a flat surface causes:
a) distortion
b) projections
c) continents
d) sensing
a) distortion
Why is Venus sometimes called Earth's twin?
Venus is about the same size and density
a) an earthquake
b) a fault
c) a deformation
d) a plate
b) a fault
a) as magma
b) as plant remains
c) as fragments of rock
d) as animal remains
c) as fragments of rock
What is the removal of substances from soil due to the passing of water called:
a) leaching
b) wedging
c) erosion
d) inflitration
a) leaching
The times when the sun is directly above the equator is called _____.
equinox
Which of the following is evidence that Pluto is not a gas giant?
a) its closeness to the Oort cloud
b) the size of its orbit
c) its density
d) its distance from the sun
c) its density
What happens at mid-ocean ridges?
sea-floor spreading
What is it called when sediment is dropped and comes to rest?
deposition
What is a mineral deposit that is large and pure enough to be mined called?
ore
The average weather condition in an area over a long period of times is called _________.
climate
When the moon is waxing is it getting smaller OR getting larger?
getting larger
a) will smoke but never erupt
b) has never erupted
c) is currently erupting or will erupt very soon
d) will erupt in 100 years
c) is currently erupting or will erupt very soon
What is the name for nonmetallic minerals that are valued for their beauty and rarity rather than their usefulness? (choose one)
ores; gemstones; pegmatites; OR plutons
gemstones
What soil conservation technique prevents erosion on steep hills by heavy rains?
a) no-till farming
b) cover crop
c) terracing
d) contour plowing
c) Terracing
The inner planets are also called what?
terrestrial planets
There are two stars which are different sizes, have the same temperature, and are the same distancef from Earth. Which star would be less luminous?
a) the bigger star
b) the smaller star
c) the imaginary star
d) the blue star
b) the smaller star
A cinder cone volcano has sloping OR steep sides?
steep sides