Earth's Structure and Others
Molten rock in the earth's mantle
magma
The climate of the earth stabilized slowly after this major event
the Flood
This river drains a rainforest that covers 40% of the South American continent
Amazon River
Refers to the breakdown of rocks by water, temperature changes, and plant roots
weathering
Solid crystals that occur naturally, have a definite chemical composition, and are extracted from rock
minerals
This theory states that the earth's surface is broken into pieces that crash into and pull apart from each other, releasing energy that causes earthquakes
plate tectonics
The most powerful erosion force
running water
Shipping products through this method is the least expensive way for nations to trade with one another
water
rivers that "feed" other rivers
tributaries
The ore from which aluminum is made
bauxite
Name the three layers of the earth's surface
crust mantle
core
This process created the fjords
glaciation
More than ___________ (fraction) of the earth's fresh water is in polar icecaps, underground, or in glaciers
2/3
Refers to all of the most basic industries
primary industries
__________ are stewards of God's resources
People
The name for the continents when they were once believed to be linked together as one supercontinent
Pangaea
This idea claims that the forces that shaped the earth as we now see it operated in the past at the same rate at which they do today
uniformitarianism
The Sierra Nevada range is an example of what type of mountains?
fault-block
A violent upheaval or change in the earth's crust
cataclysm
This is a mineral that is used in the manufacture of gunpowder
sulfur
Name the four physical systems that the planet is divided into
atmosphere hydrosphere
biosphere lithosphere
The natural removal of small pieces of rock or soil
erosion
Name the four features used to compare river systems
length drainage area
discharge navigability
Deep cracks in the earth's surface where two pieces of land have moved in different directions
faults
Two major branches of agriculture
farming
animal husbandry