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WorksheetsChapter Two - Earth as a System
Total questions: 10
Worksheet time: 20mins
Name
Class
Date
1.
The "middle" sphere, the strong, lower part of the mantle between the asthenosphere and the outer core is called the ____.
a)
biosphere.
b)
mesosphere.
c)
geosphere.
d)
atmosphere.
2.
A system in which both energy and matter are exchanged with the surroundings is called a(n) _____.
a)
open system
b)
life system
c)
closed system
d)
free system
3.
All of the following are processes through which Earth's energy and matter passes EXCEPT the ____.
a)
phosphorus cycle
b)
nitrogen cycle
c)
oxygen cycle
d)
carbon cycle
4.
What are the Earth's pole-to-pole circumference and equatorial circumference measurements?
a)
4,000 km, 40,700 km
b)
7,000 km, 7,400 km
c)
70,000 km, 40,700 km
d)
40,007 km, 40,074 km
5.
The force of attraction between any two objects depends on the masses of the objects and the distance between them, according to _____.
a)
the law of magnetism
b)
Newton's law of gravitation
c)
the law of the magnetosphere
d)
the law of plasticity
6.
Earth's shape is a(n) _____.
a)
oblate sphereoid
b)
oval
c)
perfect circle
d)
circular spheroid
7.
A community of organisms and their abiotic environment is called a(n) ___.
a)
ecological system
b)
life cycle
c)
biological system
d)
ecosystem
8.
The possible source of Earth's magnetic core is ____.
a)
Earth's ionized atmosphere
b)
the movement of tides
c)
the liquid iron in its outer core
d)
friction caused by rotation
9.
What can happen to energy as it passes through an ecosystem?
a)
It can be lost.
b)
It can be unchanged.
c)
It can increase.
d)
It can change form.
10.
Which factors do NOT control the balance of an ecosystem?
a)
producers
b)
consumers
c)
decomposers
d)
creators
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