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ENV FINAL 3

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.
An omnivore might eat…
a)
zebra
b)
carrot
c)
rabbit
d)
all of these
2.

Which producer is eaten by the largest number of animals?

a)

grass

b)

shurbs

c)

fungi

d)

trees

3.

How many types of secondary consumers are eaten by mountain lions?

a)

1

b)

2

c)

3

d)

4

4.

If all the grasshoppers were killed the rabbit population would increase in number. Why?

a)

fewer diseases

b)

fewer predators

c)

less competition

d)

all of these

5.

Of these listed, what is the largest herbivore in the food web?

a)

hawk

b)

squirrel

c)

grasshopper

d)

bird

6.

Which animals are tertiary consumers?

a)

hawk & deer

b)

grasshopper & rabbit

c)

mountain lion & hawk

d)

shrew & snake

7.

Which of the following organisms would you expect to find in the greatest numbers….

a)

mountain lion

b)

shrew

c)

bird

d)

rabbit

8.

If a new species of primary consumers suddenly moved into the ecosystem in great numbers, which species might decrease in number?

a)

hawk

b)

rabbit

c)

mountain lion

d)

snake

9.
A substance that can be reused is called…
a)
biodegradable
b)
recyclable
c)
pre-owned
d)
degradable
10.
Landfills have been eliminated or reduced because of the practice of…
a)
ocean dumping
b)
factories
c)
recycling
d)
all of these
11.
Any virus, microorganism, or other substance that causes disease; an infectious agent is a…
a)
disease
b)
pathogen
c)
prion
d)
viroid
12.
The change in seasons of the earth is caused primarily by
a)
rotation of earth
b)
spin of earth
c)
winds on earth
d)
tilt of the earth
13.
About what percentage of the earth’s water is drinkable?
a)
0.9
b)
0.23
c)
0.13
d)
>1%
14.
The fossil fuel that burns the cleanest (causes the least pollution) of these is…..
a)
coal
b)
oil
c)
natural gas
d)
they all produce the same amount
15.
Any attempt to influence the decisions of lawmakers is…
a)
politicking
b)
influence
c)
lobbying
d)
bribery