Environmental Engineering Reference
In-Depth Information
25.
Due to the large amount of vegetation in tropical rain forests, the soil is:
A.
High in nutrient content
B.
Prone to erosion
C.
Low in nutrients
D.
Waterlogged
E.
Dry
26.
A pollutant has entered a body of water at the concentration of 0.5 ppm. If it dissipates by 20 percent
every five days, how much is left after 15 days?
A.
0.44 ppm
B.
0.30 ppm
C.
0.26 ppm
D.
0.15 ppm
E.
0 ppm
27.
What is the main source of energy for Earth's organisms?
A.
Wind
B.
The sun
C.
Fossil fuels
D.
Geothermal activity
E.
Biomass
28.
Which of the following countries has the largest ecological footprint?
A.
Afghanistan
B.
Mexico
C.
India
D.
Japan
E.
The United States
29.
In a country with an inverted population pyramid, there is a
A.
Growing population
B.
High rate of disease affecting the working-age population
C.
Smaller labor market as well as more stress on social systems to support the elderly
D.
Strong military and labor market
E.
High rate of death among older ages in the population
30.
A population of mule deer was growing very quickly until starvation reduced the number of individu-
als. The mule deer passed the condition or point of
A.
Overcrowding
B.
Exponential growth
C.
Carrying capacity
D.
Limited growth
E.
Extirpation
