Geology -Rocks, Soil, and Nonrenewable resources
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
Explain and diagram the layers of the earth.
Which part of the earth's crust makes up 29% of the crust?
Large sections of the earth's crust, called ____, move slowly on the mantle below them.
When an oceanic plate collides with a continental plate the continental plate usually slides up and over the
denser oceanic plate, pushing it down into the mantle, a process called
Tectonic plates move in opposite but parallel directions along a fault at a
The worst volcanic disaster in U.S. history occurred when which mountain erupted?
The place where an earthquake begins is called its
The location on the earth's surface above where an earthquake begins is called its
The severity of an earthquake is a measure of its seismic waves, and is called
Large waves generated in the ocean by an earthquake, landslide, or volcanic activity are called
Granite is what type of rock?
Although often covered by other kinds of rock, which type of rock forms most of the earth's crust?
The change of rocks from one type to another type is known as
Explain the following types of mining and where they would most likely be used.
open-pit mining, contour mining, area strip mining, strip mining, mountain-top removal
What type of mining are they? #14
The portion of ore that does not contain the desired mineral is called
It is now necessary for the United States to import_ of the 24 most important nonrenewable mineral resources.
Depletion time is the time it takes to use up approximately _% of the mineral reserves at a given rate of use.
What are three examples of igneous rock?
Lignite, sandstone, and bituminous coal are ____ rocks.
Slate, anthracite, marble and quartzite are ____ rocks.
An earthquake reported as magnitude 1 would be considered
The surface litter horizon is described by the letter
The A-horizon of soil is commonly referred to as
The dissolving of material from the upper layers of the soil and its movement to lower horizons is called
Describe how leaching occurs.
Topsoil that is ____ in color is the most highly fertile.
If you were a farmer, which type of soil would you choose for your crops?
Which type of soil holds the most water?
Explain the following terms as they relate to sand, silt and clay. – Aeration, percolation, water infiltration,
nutrient-holding capacity
An acidic soil is one with a pH of
In tropical and temperate areas, 1/2 inch of topsoil takes an average of ____ years to form.
Currently, topsoil is eroding faster than it forms on about _____ of the world's croplands.
Explain how soil erosion and land degradation increases poverty. Explain what type of a feedback cycle it is.
Plowing, breaking up, and smoothing soil in fall to plant in the spring is called?
Compare conventional tillage to conservation tillage.
Contour farming involves…
What is alley cropping?
Commercial inorganic fertilizers commonly contain…
Reserves are _____ resources.
Subsurface mining and surface mining. Compare and contrast. Cost, safety, impact.
Name two examples of subsurface mining.
Waste soil and rock removed during surface mining is called
The fraction of the ore containing waste minerals is called the
When ore undergoes processing, a waste called _____ is produced.
Environmental impact would be greatest mining for _____ ore.
Can rocks be converted from one type to another? Explain how.
Minerals are considered renewable or nonrenewable resources. Why?
Which would have a lower environmental impact? Low grade or high grade ore.
Geologists identify 10,000 possible deposits for a given resource, how many could become a producing mine?