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WorksheetsHuman Impacts on the Environment
Total questions: 20
Worksheet time: 10mins
Which of the following practices can help farmers avoid the loss of nutrients from soil?
Crop rotation
Contour plowing
Irrigation
Conservation plowing
Human activities that destroy habitats so they no longer support the original species that lived there is called
poaching
species interaction
habitat loss
population growth
A new species moves into an area that has the right sort of conditions for the species. Which of the following would MOST likely limit the spread of the species in the new area?
unfamiliarity with the new area
competition with native species
habitat fragmentation
lack of mates
Suppose a local community wanted to reduce the amount of solid waste they were contributing to land pollution. Which of the following suggestions has the potential to result in the greatest reduction of waste?
composting food wastes
recycling paper and paperboard
reusing rubber, leather, and textiles in new products
recycling glass, plastic and metals
What is the term for a species that influences the survival of other species in an ecosystem?
exotic species
niche species
diverse species
keystone species
Which human activity can affect the survival of a population, possibly leading to extinction?
captive breeding
habitat destruction
habitat preservation
protecting endangered species
A point source of pollution is a specific source that can be easily identified. Which of the following is an example of a nonpoint source of land pollution?
debris from a coal mine
garbage such as plastic items or metal cans
oil from a leaking pipeline
chemical wasted from a factory
How can many types of food waste and yard trimmings be recycled
by reusing
by burning
by bagging
by composting
Which is an economic value of high biodiversity in an ecosystem?
reduces species interactions
sources of food and medicines
place of beauty and peace
supports many niches
Which of these is TRUE of an extinct species?
no member of the species are alive today
few members of the species are alive today
all member of the species are in the fossil record
many members of the species are alive today
What would most likely happen in the ecosystem above if the water became polluted by unhealthy chemicals?
Some fish would die, but the coral population would increase.
Some of the fish population and coral population would die.
The ecosystem would not be changed by the water pollution.
Some coral would die, but the fish population would increase.
What most likely happened to the prairie ecosystem between 2004 and 2006?
The prairie ecosystem experienced a drought.
The prairie species increased in number.
A predator of specie 1 is introduced to the prairie.
Competition decreased in the prairie ecosystem.
One year, heavy rain makes Lake Raymond very deep. The next year, however, rain is very light, and not much water is left in Lake Raymond. How will this most likely affect animal life in Lake Raymond?
There will be an increase in bacterial life the second year.
There will be several new species of fish the second year.
There will be less animal life the second year.
There will be more animal life the second year.
The soil on a plain is eroded and the grass starts to die. Grazing animals that live on the plain would probably
decrease in number.
increase in size.
increase in number.
decrease in size.
Which of the following is an example of phototropism helping a plant survive its particular environmental conditions?
The roots of a cactus grow straight down and find groundwater.
The leaves of corn fold outward away from the stalk.
A fern growing on the forest floor has broadly spreading leaves.
At the edge of a forest, a tree angles away from the woods.
Many species of birds migrate in winter. Animals including bats, ground squirrels, and woodchucks hibernate in winter. Which of the following do hibernation and migration have in common?
They both occur once per year and last for at least six months of the year.
They both occur as a way of surviving when there is little food available.
They both involve traveling from a cold climate to a warmer climate.
They both involve the animal increasing its fat stores during the summer months.
Perching birds, such as cardinals, warblers, and robins, live in trees. Suppose a developer cuts down all of the trees in an area to build a housing subdivision. What would most likely happen to the perching birds living in that ecosystem?
The perching birds would all starve and subsequently die out.
The perching birds would stop reproducing until new trees grew in the area.
The perching birds would begin building their nests on the ground.
The perching birds would be forced to migrate to another area.
The addition of excess nutrients to an aquatic community or ecosystem that can change or alter the environmental balance
Hibernation
Succession
Eutrophication
Phototropism
Which of the following is an example of humans not harming an ecosystem?
polluting their local streams
clearing large amounts of land
littering
recycling
Which of the following is the use of natural resources needed without reducing the health or function of an ecosystem?
Sustainability
Eutrophication
Phototropism
Biodiversity
