Almost all of geologic time belongs to - Answers Precambrian
Earth is 65 billion years old - Answers False
example of scientific theory - Answers Plate tectonics, biological evolution, gravity:
All the above
the present is the key to the past - Answers uniformitarianism
Which statement is true about h2o - Answers water is often presented in rocks and minerals
create magma by melting pre-existing rock to create - Answers igneous
Earth mantle is a thick ocean - Answers false
Lithosphere is composed of - Answers all the crust plus upper mantle
The rock cycle is - Answers none of the above
Pressure, temperature, and density increases - Answers with depth
The thinnest layer of earth - Answers Crust
Solid mixture of iron and nickel - Answers Inner core
Comprises most of Earth volume - Answers Mantle
Entirely liquid - Answers outer core
Which is not a source of Earth internal heat - Answers Solar radiation that cooked the Earth for
billion of years
Primary waves - Answers Can pass through solids and liquids
Which has the lowest average density - Answers Continental Crust
Temperature of Earth center - Answers 12,000
Earth magnetic field originates from motions - Answers none of the above
What color would you see at Earth center - Answers White
The ___floats and moves across the ____ - Answers Lithosphere and asthenosphere
Earth outer skin consist of - Answers 20
, Oldest rocks can be found in ocean basins - Answers false
Alfred Wegener devised the theory Plate tectonics - Answers False
Earth is expanding like a ballon - Answers False
Earth tectonic plates are - Answers curved or domed
The sea floor is spreading - Answers 2 inches each year
The youngest oceanic crust is - Answers .000000001 million years old
Volcanic island arcs are located - Answers two plates of oceanic lithosphere converge
Continental crust is - Answers Less dense, typically older, and thicker than oceanic crust
Place formed by subduction of one oceanic plate above the other - Answers Japanese islands
This feature has recorded the direction of rate of movement - Answers Hawaiian islands
Formed by oceanic plates beneath a continental one - Answers Cascade
Place where you can stand on two different plates - Answers San Andreas
Formed by collision of two continental massses - Answers Himalaya
Best place to study early ocean basins - Answers East Africa
North Carolina is located at the easternmost edge of the North America plate - Answers False
Mineral and Rock mean the same thing - Answers False
Ions that carry a positive charge is - Answers Cation
Chemical bonding between two different elements involve - Answers Electrons
Graphite and diamond have the same chemical composition but different structure - Answers
True
What is the most abundant element in Earth Crust - Answers Oxygen
Most abundant mineral in Earth crust is - Answers Feldspar
90% of earth crust is composed of - Answers Silicate Minerals
Building block for Earth crust is - Answers (SiO4)-4
The ___ silicate minerals have iron in their chemical compostiion - Answers Ferromagnesian
A typical magma includes - Answers Dissolved gases