Changes to Environment

Front

Which of these activities is most likely to have a negative impact on Earth's environment? Planting Trees, Constructing highways, Recycling paper and plastic, None of the above

Back

Constructing highways

Front

What effect would building a highway have on an ecosystem?

Back

Increase in Carbon dioxide

Front

Scientific evidence predicts events that will occur because of overpopulation of grazers. Which of the following is NOT a change caused by the overpopulation of grazers? Grazers have less food to eat. Grazers wonder into unnatural habitats. Grazers have access to unlimited resources. Grazers are susceptible to more diseases.

Back

Grazers have access to unlimited resources.

Front

Humans are part of the ecosystem and therefore impact it. Which of the following events in an ecosystem may produce a negative effect? Preventing deer from depleting food resources, Restoring a natural habitat, Wildfire rangers minimizing disturbances, A lumber company clearing a forest

Back

A lumber company clearing a forest

Front

All the following are ways humans can adversely change the ecosystem EXCEPT: waste dumping, overhunting animals, industrial pollution.

Back

using biodegradable products

Front

Hunting is an environmental management tool that helps control wildlife populations. Hunting is an example of

Back

humans creating a change in an ecosystem

Front

During the construction of a mall, a lake was filled in. This would have the greatest negative effect on organisms that - hunt for berries, live in water, sleep in trees, burrow in soil

Back

live in water

Front

An Oregon truffle is a type of fungus that grows underground in moist soil near fir trees and reproduces using spores instead of seeds. Which environmental change would likely cause a decrease in the truffle population? Options: More than average rainfall in a forest, Counting and recording the amount of truffles, Wind spreading the truffles' spores all around, Cutting down the fir trees and planting crops

Back

Cutting down the fir trees and planting crops

Front

How would increased fishing in the lake affect the lake ecosystem?

Back

Predators might starve due to loss of food source

Front

The ecosystem of some dairy cows includes the fields in which they graze, eating the grass they need. Too many cows can be harmful to their ecosystem because they could -

Back

remove all the vegetation