WorksheetsES Unit 8 Test
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
A solid of one mineral or a combination of minerals in Earth's crust
a)
rock
b)
lithosphere
c)
reserve
2.
The combination of Earth's crust and rigid outermost part of the mantle
a)
rock
b)
lithosphere
c)
reserve
3.
The supply of nonrenewable mineral resource that is economically feasible for extraction
a)
rock
b)
lithosphere
c)
reserve
4.
Type of mining in which terraces are cut into the side of a slope
a)
strip mining
b)
overburden
c)
smelting
5.
The soil and rock removed from a surface mine before minerals are extracted
a)
strip mining
b)
overburden
c)
smelting
6.
A process in which ores are heated to release metals
a)
strip mining
b)
overburden
c)
smelting
7.
One of a group of minerals with unique properties that lend themselves to use in technology products
a)
rare earth metal
b)
continental drift
c)
asthenosphere
8.
The slow movement of continents across Earth's surface
a)
rare earth metal
b)
continental drift
c)
asthenosphere
9.
The layer of Earth beneath the lithosphere in which convection currents flow
a)
rare earth metal
b)
continental drift
c)
asthenosphere
10.
Ore is a rock that contains a large enough concentration of a particular mineral- often a metal- to make it profitable for mining.
a)
True
b)
False
11.
List 3 important minerals and a use for each (use a numbered list and be specific)
4 lines
12.
What is depletion time? What are 2 factors that affect it? How can you extend it?
4 lines
13.
The period it takes to use up a certain portion, usually 80%, of a non-renewable resource at a given rate of use
a)
depletion time
b)
daylight savings time
c)
land before time
100 %
