Geology/Earth
What are the deep cracks or fissures that develop on the surface of a glacier?
a. cirques
b. crevasses
c. horns
d. aretes
What are crevasses.
What is the main agent of chemical weathering?
a. soda lime
b. oxygen
c. water
d. sulfuric acid
What is water.
The mass of foaming water formed when waves wash up onto a beach is the ____________.
What is sea foam.
What is the largest group of minerals, which composes over 90% of earth's crust?
a. phosphates
b. silicates
c. halides
d. carbonates
What are silicates.
What idea attempts to reconcile the Bible and evolution by claiming that God used evolution as the method of creation?
a. biological evolution
b. cosmic evolution
c. theistic evolution
d. creational evolution
What is theistic evolution.
What term refers to a fossil organism found in strata that are supposedly too old or too young to contain that organism?
a. trace fossil
b. index fossil
c. unconformityd. anomaly
What is the process of modifying a smooth slope into a series of level, stair-like steps to prevent erosion?
a. strip-cropping
b. breakwater
c. windbreak
d. terracingWhat is terracing.
The material carried by a stream is its ________.
What is stream load.
What type of rock consists of smooth pebbles embedded in hardened sand or clay?
a. mixed-textured rock
b. nonfoliated rock
c. conglomerate rock
d. aluminum
What is conglomerate rock.
What type of volcano is made of alternating layers of lava and ash?
a. shield volcanob. cinder-cone volcano
c. composite volcano
d. intrusive volcano
What is a composite volcano.
What term describes a fossil that extends through multiple strata?
a. index fossil
b. living fossil
c. stasis fossild. polystrate fossil
What is a polystrate fossil.
What are large holes formed when huge chunks of melting glacial ice lodge in washed out sediments?
a. kettles
b. drumlins
c. striae
d. moraines
What type of current is made of seawater mixed with mud or silt and can erode the ocean floor to produce submarine canyons?
a. salinity current
b. upwelling
c. turbidity currentd. counter current
What are turbidity currents.
Which gemstone consists of corundum with traces of iron or titanium that give it a distinctive blue color?
a. sapphire
b. zircon
c. turquoise
d. aquamarine
What are sapphires.
Which of the following metals is used as a fuel for nuclear reactors?
a. uranium
b. platinum
c. nickel
d. aluminum
What is uranium.
What is the top layer of soil, which contains most of the organic substances and nutrients, called?
What is topsoil.
What are the natural ridges formed when water flow causes sediments to drop along the edge of a river's channel?
a. deltas
b. meander
c. levees
d. floodplains
What substance makes up most of the salt in the oceans?
a. magnesium sulfate
b. potassium fluoride
c. sodium chloride
d. calcium carbonate
What type of fault occurs when rocks on one side of a fault are shoved on top of the rocks on the other side of the fault?
a. normal fault
b. abnormal fault
c. thrust fault
d. strike-slip fault
What is a thrust fault.
What are weaker earthquakes that often follow an earthquake at frequent intervals for days or months?
a. craton
b. slickensides
c. aftershocks
d. microquakes
What are aftershocks.
The middle layer of the earth, between the crust and core, is the _________?
What is the mantle.
What type of weathering involves the breaking or peeling away of rock into layers?
What is exfoliation.
What is a wave that grows taller and steeper as it travels to shore and topples forward with a white crest called?
a. surf
b. rip current
c. upwelling
d. breaker
What is a breaker.
What are metamorphic rocks.
Why can icebergs float in seawater?
Icebergs are less dense than saltwater.