The most common elements in the earth's crust are ________________.
Carbon, hydrogen, and oxygen.
Oxygen, silicon, and aluminum.
Carbon, silicon, and sulfur.
Silicon, aluminum, and iron.
_______________ is when a mineral breaks along irregular surfaces.
Clevage
Fracture
Hardness
Specific Gravity
_______________ is the primary cause of melting at divergent plate boundaries in the oceans (mid-ocean ridges).
Adding Water
Reducing Pressure
Increasing Temperature
All listed options are correct
Gabbro and basalt _________________.
Have the same chemical composition.
Have the same texture.
Have the same texture and chemical composition.
Have different texture and chemical composition.
Shield volcanoes are composed primarily of _______.
Andesite
Basalt
Granite
All options are correct.
Volcanic eruptions are explosive when ____________.
The gases in the magma can move throught the magma easily.
The gases in the magma cannot move throght the magma easily.
The gases in the magma escape.
Gas plays no role in how explosive a volcanic eruption is.
The ___________ of a soil is a leached zone.
A horizon
B horizon
C horizon
D horizon
E horizon
_______________ is a high-grade metamorphic rock.
Gneiss
Slate
Schist
Vein
Coarse-grained igneous rocks ______________.
Crystallized near the surface.
Crystallized deep beneath the surface.
From close to the source area.
From far from the source area.
In igneous rocks, grain size refers to ______________.
The size of the crystals.
The sorting of the sediments.
The distinctness of the banding.
The size of the sediments.
____________ is the breakdown of rocks and minerals at the earth's surface.
Weathering
Erision
Depostion
Transportation
The ______________ is granitic in composition.
Continental crust
Oceanic crust
Asthenosphere
Core
_______________ sedimentary rocks are formed from places of pre-exisiting rocks that have been weathered, eroded, and transported at the Earth's surface.
Chemical
Clastic
Biochemical
Organic
Fine-grained igneous rocks form at or near the Earth's surface.
Low grade metamorphic rocks are fine-grained.
Coarse-grained sedimentary rocks formed close to their source area.
The theory of plate tectonics is proven beyond and doubt and will never change.
All minerals are crystalline solids.
Shield volcanoes generally have very explosive eruptions.
Chemical weather is most intense in dry climates.
A sedimentary rock with cross-bedding could have been deposited in a lake.
Equigranular metamorphic rocks have a foliated texture.
Quartz chemically weathers to form clay minerals and ions in solution.
Slate and gneiss have the same texture.
Sediments deposited directly by a glacier tend to be well-sorted.
A hypothesis is really just an educated guess.
Felsic magma have a high viscosity.
The Earth's core, mantle, and crust have different compositions.
Regional metamorphism occurs along the contact between hot magma and the surrounding, cooler rocks.
The Earth's lithosphere is weaker than the asthenosphere.
The inner core is thought to be composed of molten iron and nickel.
