Environmental Engineering Reference
In-Depth Information
7.
If soil has the ability to hold high amounts of water and gases in its pore spaces, it is said to have:
A.
High soil porosity
B.
Low soil porosity
C.
High soil permeability
D.
Low soil permeability
E.
Waterlogging
8.
Which of the following are naturally occurring indoor air pollutants?
A.
Radon and asbestos
B.
Asbestos and tobacco smoke
C.
Radon and CFCs
D.
Chloroform and radon
E.
Formaldehyde and chloroform
9.
Atmospheric convective currents are due to the:
A.
Intensity of hurricanes
B.
Rising of warm, less dense air, which then cools and becomes more dense at it rises, causing the air
to sink back toward the Earth
C.
Rising of cool, less dense air, which then warms and becomes more dense at it rises, causing the air
to sink back toward the Earth
D.
Rising of cool air
E.
Increasing velocity of tornadoes
10.
If the population is growing at a rate of 1.4 percent annually, the population will double in how many
years?
A.
20
B.
50
C.
65
D.
100
E.
140
11.
K-selected species often are regulated by density-dependent factors. A population of K-selected ele-
phants is experiencing a recent rapid decline in numbers. Which of the following is the most likely
cause?
A.
Declining predator populations
B.
Lack of food and water
C.
Climate change
D.
Increase in vegetation
E.
Inbreeding
12.
Positive feedback loops
A.
Keep the environment in dynamic equilibrium
B.
Are closed systems
C.
Are becoming more common in nature because of human impact on the environment
D.
Are open systems
