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Worksheets2023 Ecosystems and Human Activity
Total questions: 17
Worksheet time: 1hrs 25mins
Name
Class
Date
1.
What percentage of the United States exports included fruits and vegetables?
a)
8%
b)
9%
c)
17%
d)
27%
2.
The type of fishing shown is dangerous because _
a)
entire populations of fish can be caught at one time.
b)
fishermen can get caught in the net during the harvest.
c)
the buoy causes visual distraction to surrounding organsims.
d)
the anchor can cause a large amount of weathering to the seafloor.
3.
Reduce, reuse, and recycle are the three R’s of
a)
Population control
b)
Pollution
c)
Natural selection
d)
Conservation
4.
Using the pie graph, identify a way humans could help slow deforestation.
a)
Find new materials to use besides wood.
b)
Find an alternative sources of fuel besides wood
c)
Reduce the use of land for agriculture and switch to cattle ranching.
d)
Increase the number of cattle on ranches instead of making more ranches.
5.
Fill in the table showing the positive impacts of human interaction on the environment.
a)
Larger landfills and coal power
b)
Recycling and solar power
c)
Recycling and coal power
d)
Larger landfills and bottling water
6.
Fill in the table showing the negative impacts of human interaction on the environment.
a)
Recycling and solar power
b)
Bottling water and recycling
c)
Solar power and Larger landfills
d)
Larger landfills and coal power
7.
A farmer clears a 100 acre plot of land and plants corn. What are the negative impacts this could have on local ecosystems?
a)
Less room for animals to hunt, nitrogen run-off in ecosystem, fewer trees
b)
Birds finding food on cleared land, more food for livestock, fewer trees
c)
More food for livestock, less room for animals to hunt, fewer trees
d)
Fewer trees, nitrogen run-off in ecosystem, more food for livestock
8.
What happens when humans cut down forests to build shopping malls?
a)
Plants and animals thrive in the new environment and pollution decreases.
b)
New animals species form and plants produce more oxygen.
c)
The shopping mall reduces the amount of pollution in the area.
d)
Habitat is altered, plants and animals destroyed, and pollution increases.
9.
What will most likely decrease the size of a habitat?
a)
Clearing land to build a house.
b)
Using public transportation.
c)
Recycling once a week.
d)
Conserving water on a daily basis.
10.
In a population increase in any species, what would also have to increase in order for the species to thrive?
a)
Number of males, availability of food, availability of water
b)
Ability to see at night, number of males, number of predators
c)
Space for shelter, availability of food, availability of water
d)
Number of predators, space for shelter, number of males
11.
Which of the following are positive effects humans have on an ecosystem?
a)
Use sanitary, leakproff landfills and protect endangered animals
b)
Use only tropical rainforests for agriculture and lumber, compost garbage
c)
Build more shopping centers away from neighborhoods and protect endangered animals
d)
Build more shopping centers and use only tropical rainforests for agriculture and lumber
12.
Which of the following are positive effects humans have on an ecosystem?
a)
Compost piles for garbage and build shopping centers away from neighborhoods
b)
Establish wildlife reservations and national forests and compost piles for garbage
c)
Establish wildlife reservations and build shopping centers away from neighborhoods.
d)
Use only tropical rainforests for lumber and agriculture and compost piles for garbage
13.
What human activity has the least negative impact on habitat quality?
a)
Selective cutting
b)
Deforestation
c)
Industrial dumping
d)
Strip mining
14.
Which statement summarizes the chart?
a)
As the population of the world increases, the amount of carbon emissions decreases.
b)
As the population of the world decreases, the amount of carbon emissions increases.
c)
As the population of the world increases, the amount of carbon emissions increases.
d)
As the population of the world decreases, the amount of carbon emissions decreases.
15.
Zebra mussels and kudzu vine are both alien species brought to America. Why do alien species thrive in their new habitat?
a)
The alien species are always autotrophs.
b)
The new habitat is free of pollution.
c)
The alien species are weaker.
d)
The new habitat often lacks natural predators of the alien species.
16.
When predators are low, as seen on the graph, what will most likely result?
a)
Prey population will stay the same.
b)
Prey population will decrease.
c)
Prey population will increase.
d)
Prey population will fluctuate.
17.
The brown marmorated stink bug begin to infest the United States in 1998 and has become one of the country’s worst agricultural pests. Why did the brown marmorated stink bug become so populated in such a short time in the U.S.?
a)
The brown marmorated stink bug has a life span of 20 years.
b)
The brown marmorated stink bug reproduces five times a year.
c)
The brown marmorated stink bug does not have any natural predators in the United States.
d)
The brown marmorated stink bug can feed on any plant, no exceptions.
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