WorksheetsCFA#2 Human Impact Retake Review
Total questions: 14
Worksheet time: 8mins
Acid precipitation harms vegetation and reduces soil quality. Which of the following is MOST responsible for acid precipitation?
natural changes in the atmosphere
natural changes in climate
burning of fossil fuels
decrease in ozone levels
Erosion is the process by which soil and sediments are moved by gravity, wind, and water. Erosion occurs naturally, but it can be accelerated by human activity. Which of these human activities most contributes to soil erosion?
cutting down trees
fertilizing a lawn
boating on a lake
biking on forest trails
Pollutants can enter a body of water from many locations. Residents in Franklin Township spill gasoline in the grass in their yard. This widespread problem is an example of…..
no pollution because it happens everywhere
point source pollution
biological pollutant waste
non-point source pollution
A community planner studies how forests are used in a particular area. She learns that the community uses lumber from the forest to build houses and provide fuel for wood-burning stoves. She determines that the number of trees chopped down each year is greater than the number of trees planted each year. What conclusion can she make about the sustainability of this community’s land-management practices? The community’s land management practices are...
not sustainable, because eventually the community will run out of trees.
not sustainable, because the community uses the same resource for fuel and shelter.
sustainable, because the community plans to use coal in the future.
sustainable, because the community does not produce much pollution.
Smog is a pollutant that can cause serious health problems. Smog is most often seen over large cities. Which of these substances is a main ingredient of smog?
volcanic ash
vehicle exhaust
carbon dioxide
acidic rain
The line graph above shows the average amount of dissolved nutrients in a body of water each year from 1996 to 2005.
How did eutrophication affect this body of water between 2000 and 2005?
discharging warm water into the body of water
adding nutrients from chemical fertilizers to water
burning fossil fuels
dumping litter in the water
______________ is the wise use of resources to reduce damage to the environment.
Overgrazing
Deforestation
Conservation
Desertification
Why does reducing your carbon footprint help fight global warming?
Carbon compounds are responsible for the thinning of the ozone layer in the atmosphere, therefore reducing my carbon footprint will prevent this destruction.
Carbon monoxide and carbon dioxide help to absorb harmful radiation from the sun, and reducing my carbon footprint will prevent an increase in cancer cases.
When carbon compounds are released into the atmosphere, they combine with water vapor in the air to create acid precipitation. Reducing my carbon footprint will prevent this type of pollution.
Reducing our carbon footprint will decrease the amount of carbon dioxide released into the atmosphere, decreasing the amount of sun’s energy held near the Earth’s surface.
Increasing the carbon dioxide level in our atmosphere will lead to
no overall change in the Earth’s environment.
an increase in the level of oxygen, which will help us breathe better.
an increase in Earth’s average temperature over time.
a decrease in Earth’s average temperature over time.
Why is coal considered to be a non-renewable natural resource?
Coal will never run out.
Coal turns into oil and natural gas.
Coal is being used faster than it is produced.
Coal is used to produce energy, not materials.
Lynnette is categorizing natural resources. Which of the following is a nonrenewable resource she should include on her list?
wind
sunlight
water
oil
Which type of pollution is described when an easily identifiable factory dumps chemicals into a local ditch or stream?
point-source
non-point source
acid rain
smog
Deforestation is the process whereby natural forests are cleared through logging and/or burning, either to use the timber or to replace the area for alternative uses.
Reducing the vegetation (plants and trees) on Earth can lead to increased levels of
an increase in forest sustainability.
oxygen gas in the atmosphere.
resource conservation.
carbon dioxide gas in the atmosphere.
The picture shows a common landscaping practice (adding fertilizer to the ground) that can cause pollution, because its application also leads to the pollution of
the air when chemicals break down and produce gases.
nearby water sources when runoff carries chemicals from the soil to local streams and lakes.
nearby soil when animals track mud from one place to another.
drinking water in the home when chemicals seep into underground pipes.
