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large divisions in the earth's crust
tectonic plates
the change in seasons is most directly related to this feature of the earth
axis tilt
this is responsible for keeping asteroids away from the earth
jupiter's gravity
the space between the arms of a galaxy is the least dangerous place for a planet to be located, which provides safety for life, but also it allows us a very clear view of the heavens. this is the galaxy the earth is located in.
milky way
this word literally means "the study of the earth"
geology
secular geologists currently believe that the earth's age is this many years old
4.5 billion
young-earth creationists believe the the earth is about this many years old
6000-7000
geologists collect data to model the earth's interior by using seismic waves that come from these
earthquakes
this layer of the earth is the thinnest
crust
the bottom of the crust is called this
Mohorovicic Discontinuity (Moho)
Scientists believe that the earth's core is made mostly of this metal
iron
cows are an example of this kind of natural resource because they are living
biological
a resource manager who is concerned with sustainable yields works with these types of resources
renewable
the shape of earth's orbit around the sun
ellipse
other planets have these, but none are as clear as earth's
atmosphere
gravity sensors and magnetism can not help define the shape of the earth's interior. the only way scientists know about the interior is because of measuring these
seismic waves
this characteristic protects the earth from harmful radiation particles that are streaming through space
magnetic field
the old-earth view of the earth's history is called this viewpoint
deep-time
resources must be protected from pollution and abuse. This is a way to conserve a nonrenewable resource while still using it.
recycle
this layer of the earth has both a solid and a liquid part
core
uniformitarianism was introduced to geology by this man
James Hutton
this layer of the earth is at the very top of the mantle and may include parts of the crust
asthenosphere
water exists as a liquid and carbon dioxide remains a gas because we are located here
within the sun's habitability zone, or a perfect location in the solar system.
this layer of the earth is mostly made of high density, plastic-like material
mantle
this layer of the earth stretches from the outermost part of the earth to the lowermost part of the Mohorovicic Discontinuity
Lithosphere