Which method of protecting members of an endangered species is most ecologically sound?A. passing laws that encourage hunting of the predators of these species.B. feeding and constructing shelters for these organisms.C. protecting the habitats where these animals live from human development.
You are watching: Which human activity would preserve finite resources
One way that humans could have a positive impact on local environments is to…A. use resources that are renewable.B. increase planting large areas of one crop.C. increase the use of pesticides.
What is a human activity that would preserve finite resources?A. deforestationB. recycling aluminumC. heating homes with fossil fuels
Depletion of nonrenewable resources is often a result of…A. reforestationB. recyclingC. human population growth
Most scientists recommend reducing carbon dioxide emissions. Less carbon dioxide in the atmosphere would be expected to…A. reduce destruction of the ozone layerB. Increase damage caused by acid rainC. decrease the number of biotic factors in ecosystems
The release of products of combustion into the air often causes the formation of ozone near the surface of the Earth. This ground-level ozone damages plants and affects their ability to absorb carbon dioxide. The doubling of ground-level ozone since 1850 is most likely due to…A. the extinction of certain animal speciesB. A greater use of nuclear fuelC. emissions from vehicles and industrial processes
Global warming has been linked to a decrease in the A. size of the polar ice capsB. rate of species extinctionC. temperature of the Earth
A serious threat to biodiversity is…A. maintenance of food chainsB. competition within a speciesC. habitat destruction
The presence of wastes, such as plastic bags and motor oil, in lakes and streams miles away from developed areas suggests that…A. ecosystems are interconnected and human action can alter ecosystem equilibriumB. direct harvesting practices have led to irreversible destruction of ecosystemsC. recycling programs have failed to conserve biotic resources
Which one of the following actions would be least likely to harm endangered species?A. decreasing the amount of dissolved oxygen in the oceansB. reducing the human populationC. reducing the thickness of the ozone layer
Which change is the cause of the other three?A. destruction of the ozone shieldB. increased industrializationC. destruction of natural habitatsD. increased fossil fuel consumption
A new auto manufacturing plant is opening in a certain town. It will have some negative environmental impacts. This is a trade-off that the town officials had to consider carefully before giving final approval. They most likely gave their approval because the negative impacts would be offset by the…A. release of pollutants into the environmentB. creation of new employment opportunitiesC. increase of auto traffic around the plant
Many farmers plant corn, then harvest the entire plant at the end of the growing season. One negative effect of this action is that…A. soil minerals used by the corn plants are not recycledB. corn plants may replace renewable sources of energyC. corn plants remove acidic compounds from the air all season long
Continued depletion of the ozone layer will most likely result in…A. an increase in marine ecosystem stabilityB. an increase in skin cancer among humansC. a decrease in climatic changes
A change in the acidity of mountain lakes would most likely be a result of…A. ecological succession of the area at the top of the mountainB. air pollution from smoke stacks miles awayC. planting grasses and shrubs around the lakes
The importation of organisms such as the Japanese beetle and Gypsy moth to areas where they have no natural enemies best illustratesA. the use of abiotic factors to reduce pest speciesB. attempts by humans to protect extinct speciesC. a human activity that disrupts existing ecosystems.
A forest is cut down and is replaced by a cornfield. A negative consequence of this practice is…A. an increase in the carbon dioxide released into the atmosphereB. a decrease in biodiversityC. an increase in the size of predators
One possible reason for the rise in the average air temperature at Earth”s surface is that…A. industrialization has increased the amount of carbon dioxide in the airB. deforestation has increased the levels of oxygen in the atmosphereC. decomposers are being destroyed