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Worksheets7-4.3
Total questions: 15
Worksheet time: 8mins
Name
Class
Date
1.
Which is a positive effect of wildfires?
a)
air pollution
b)
habitat destruction
c)
loss of property
d)
seed germination
2.
Which of the following is not a cause of landslides?
a)
clear cutting for lumber
b)
earthquakes
c)
excessive development
d)
lack of rain
3.
Which of the following describes large areas of ground that fall or flow on slopes due to gravity?
a)
floods
b)
hurricanes
c)
landslides
d)
wildfires
4.
Samantha's town just experienced a natural hazard where unusually high water overflowed its natural bank onto normally dry land. Which of the following describes this event?
a)
flood
b)
landslide
c)
tornado
d)
wildfire
5.
Which of the following will decrease a squirrel population?
a)
squirrels birth rate increases
b)
squirrels die from disease
c)
squirrels immigrate to a forest
d)
squirrel's predators decrease
6.
Which of the following can affect the number of organisms that an environment can support?
a)
birth rate
b)
carrying capacity
c)
death rate
d)
limiting factor
7.
Which of the following best describes when birds leave an area and fly south for the winter?
a)
carrying capacity
b)
emigration
c)
immigration
d)
limiting factor
8.
Which of the following best describes when birds return to an area in the spring?
a)
carrying capacity
b)
emigration
c)
immigration
d)
limiting factor
9.
Which of the following best describes the lack of food that causes birds to fly south for the winter?
a)
carrying capacity
b)
emigration
c)
immigration
d)
limiting factor
10.
Which of the following best describes the maximum number of birds that can live in an area?
a)
carrying capacity
b)
emigration
c)
immigration
d)
limiting factor
11.
Which of the following is the main way that organisms are added to a population?
a)
birth rate
b)
carrying capacity
c)
death rate
d)
limiting factor
12.
Which of the following best describes when a wall of water quickly sweeps over an area?
a)
flash flood
b)
landslide
c)
regular river flood
d)
wildfire
13.
Which of the following conditions might cause a population to increase?
a)
death rate exceeds birth rate
b)
emigration exceeds death rate
c)
emigration exceeds immigration
d)
immigration exceeds birth rate
14.
A fox habitat has enough food for 15 foxes, enough water for 30 foxes, and enough space for 10 foxes. How many foxes can this habitat support?
a)
10
b)
15
c)
30
d)
55
15.
The graph shows the change in the deer population on an island for one year. According to the graph, what is the carrying capacity of the deer?
a)
Zero
b)
10
c)
80
d)
100
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