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REVIEW LESSON: Earth's Subsystem and Biochemical Cycle

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

Which of the following statements about a closed system is not true?

a)

The resources used are regenerated.

b)

The amount of matter within a closed system is fixed.

c)

The waste produced cannot really be disposed.

2.

Which of the following refers to the sequence of transfers of matter and energy in the form of food from organism to organism in a single path?

a)

Food web

b)

Food cycle

c)

Fodd chain

3.

Which of the following is just a part of a sub system?

a)

Atmosphere

b)

Lithosphere

c)

Cryosphere

d)

Hydrosphere

4.

Which of the following gases contributes to the 21% of the earth's atmosphere?

a)

Argon

b)

Nitrogen

c)

Carbon dioxide

d)

Oxygen

5.

How do the biosphere and the atmosphere interact?

a)

Air contains water.

b)

Volcanic ash can enter the atmosphere.

c)

Living things need air to survive.

6.

Which of the following is not a photosynthetic organism?

a)

Algae

b)

Molds

c)

Cyanobacteria

d)

Plants

7.

Which of the following is not true about chemo-synthetic organisms?

a)

They use energy from sunlight to perform chemosythesis.

b)

They use of energy released by inorganic chemical reactions to produce food.

c)

They use energy from hydrothermal vents or methane seeps.

8.

What percentage of the Earth is covered with water?

a)

50%

b)

60%

c)

70%

d)

80%

9.

How do the geosphere and the hydrosphere interact?

a)

The geosphere stores parts of the hydrosphere.

b)

The geosphere erodes (shapes) the hydrosphere.

c)

The hydrosphere stores parts of the geosphere.

10.

How do the biosphere and the hydrosphere interact?

a)

Air contains water.

b)

Living things need water to survive.

c)

Volcanic ash can enter the atmosphere.

d)

These two spheres do not interact.

11.
Organisms require nitrogen to make which of the following?
a)
glucose and starch
b)
lipids and nucleic acids
c)
proteins, chlorophyll,  and nucleic acids
d)
carbohydrates and proteins
12.
How do plants get the nitrogen they need?
a)
from the air
b)
from the soil or water in which they live
c)
from the Sun
d)
from broken-down rocks
13.
Organisms that break down dead plants & animals and release nitrogen back into atmosphere...
a)
bacteria
b)
plants
c)
animals
d)
producers
14.
Photosynthesis
a)
absorbs CO2
b)
releases CO2
15.
Which of the following is a consequence of excess carbon building up in Earth’s atmosphere?
a)
The amount of breathable oxygen available to living things decreases
b)
Global temperatures change, affecting normal weather patterns.
c)
The amount of solar energy reaching the earth’s surface decreases.
d)
Global air pressure increases making it more difficult for plants and animals to breathe.
16.
In what process is Carbon turned transformed into chemical energy?
a)
Photosynthesis
b)
Respiration
c)
Primary Production
d)
Secondary Production
17.
How nitrogen is "fixed" into useable form for plants...
a)
through action of bacteria only
b)
through lightning only
c)
through action of bacteria & lightning
d)
through photosynthesis
18.
How does carbon in a grass plant get into a lion?
a)
The lion eats the grass
b)
Carbon from grass doesn't end up in a lion. 
c)
The carbon ends up in the food the lion eats. 
d)
The lion breathes in carbon given out by the plant
19.
What is it called when plants give off water vapor as a waste product?
a)
condensation
b)
evaporation
c)
sublimation
d)
transpiration
20.
97% of the Earth's water is  located in....
a)
ground wat
b)
the ocean
c)
lakes, rivers, and streams
d)
glaciers