Which statement about agroecosystems is true?
Monoculture decreases the use of chemicals.
Agriculture does not change the natural environment.
Agroecosystems have low species and habitat diversity.
Agroec
...
Which statement about agroecosystems is true?
Monoculture decreases the use of chemicals.
Agriculture does not change the natural environment.
Agroecosystems have low species and habitat diversity.
Agroecosystems are similar to natural ecosystems.
CONCEPT
Agriculture Impacts
2
Of the options below, which is an example of a point source of water
pollution?
Acidic runoff from abandoned mines contains lead and mercury that saturate the soil.
A factory’s wastewater pipe opens directly over a nearby river.
Landscapers' fertilizers and pesticides are sprayed on the lawns of a neighborhood.
Litter and pet waste are left on a city’s beaches.
CONCEPT
Water Pollution
3
Which of the following is true about the ecological footprints of the
U.S. and developing countries?
The U.S. standard of living requires 15 hectares of land per person, but a developing
nation’s standard of living requires 10 hectares of land per person.
The U.S. standard of living requires two hectares of land per person, but a developing
nation’s standard of living requires 0.2 hectares of land per person.
The U.S. standard of living requires five hectares of land per person, but a developing
nation’s standard of living requires 0.5 hectares of land per person.
The U.S. standard of living requires 10 hectares of land per person, but a developing
nation’s standard of living requires one hectare of land per person.
CONCEPT
Human Population Growth
4
Which of the following is NOT a reason for malnutrition and
undernourishment in the world?
Some regions are overpopulated.
Not enough food is produced to feed everyone on Earth.
Floods and droughts disrupt food production.
Poor countries have limited purchasing powe
[Show More]