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The Earth System
Test Description: Review of Earth Systems and Interactions and The Geosphere
Instructions: Answer all questions to get your test result.
1) Which two systems interact when a river causes erosion?
A
the hydrosphere and the geosphere
B
the biosphere and the atmosphere
C
the biosphere and the geosphere
D
the hydrosphere and the biosphere
2) Phosphorus does not exist in which system?
A
biosphere
B
geosphere
C
atmosphere
D
hydrosphere
3) Which of the following describes carbon dioxide in the atmosphere?
A
industrial runoff
B
dissolved phosphate
C
fossil fuel
D
greenhouse gas
4) Which term describes the way a mineral's surface reflects light?
A
streak
B
luster
C
fracture
D
cleavage
5) Which horizon of a soil profile contains the highest amount of organic material?
A
B horizon
B
C horizon
C
D horizon
D
A horizon
6) Which statement describes continental crust?
A
rich in the dense minerals iron and magnesium
B
containing very little oxygen
C
less dense than oceanic crust
D
made up of igneous rocks only
7) A biosphere is the part of Earth that supports ______.
A
water
B
air
C
life
D
minerals
8) The air that surrounds Earth is called ________.
A
the biosphere
B
the geosphere
C
the atmosphere
D
the hydrosphere
9) Water returns to the atmosphere by the process of _______.
A
evaporation
B
precipitation
C
condensation
D
radiation
10) Surface processes that work to break down rock are called _____.
A
subduction
B
cementation
C
weathering
D
compaction
11) One possible result of extra carbon dioxide in the atmosphere is _________.
A
a rise in average temperatures on Earth
B
a decrease in the amount of water on Earth
C
a decrease in the amount of nitrogen in the soil
D
an increase in the number of carnivores on Earth
12) All minerals are ______.
A
organic solids
B
made in a lab
C
naturally occurring
D
unordered
13) How are igneous rocks formed?
A
They are formed from sediments that collected in ocean beds.
B
They are hot magma the moment it is expelled from a volcano.
C
They are formed from cooled magma.
D
They are formed over many years of pressure and heat within Earth.
14) A rock is a(n) _________.
A
element
B
atom
C
compound
D
mixture
15) How do chemical and physical weathering differ?
A
Physical weathering - rocks are broken by physical processes. Chemical weathering - chemical reactions dissolve minerals
B
Chemical weathering can occur with the help of water reacting with carbon dioxide. Mechanical weathering - no water involved.
C
Physical weathering happens in the Earth's crust, and chemical weathering happens in the mantle.
D
Mechanical and chemical weathering can happen with the help of plants and animals.
16) In which horizon of a soil profile is the parent material?
A
A horizon
B
D horizon
C
C horizon
D
B horizon
17) The _______ is the Earth's thinnest layer.
A
mantle
B
outer core
C
inner core
D
crust
18) The warmest place within Earth is the ________.
A
mantle
B
outer core
C
inner core
D
crust
19) When algae from an algal bloom die, they are broken down by bacteria that use up much of the ___________ in the water.
A
chemical pesticides
B
oxygen
C
carbon dioxide
D
food
20) The rock cycle suggests that _______.
A
rocks disappear from Earth as they go underground
B
rocks always stay in the same form
C
rocks are continually recycled into different forms
D
rocks are always being added to Earth's mass
*select an answer for all questions
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