Help w/ Quiz? I think the answers are 1.E, 2.D, 3.A, 4.C,?

Earth Science Quiz help?
Which of the following does not contribute to acid deposition?
A) sulfur dioxide
B) ozone
C) vehicle engine combustion
D) NOx
E) coal-burning
2.
Which of the following most frequently exceeds EPA standards?
A) carbon monoxide
B) carbon dioxide
C) ozone
D) lead
E) NOx
3.
Which of the following contributes to photochemical smog?
A) carbon monoxide
B) lead
C) NOx
D) carbon dioxide
E) sulfur dioxide
4.
Scrubbers ________.
A) are pollutants that result from burning wood, charcoal, animal dung, and crop waste
B) are endangered endemic birds from South America
C) are installed in smoke stacks to reduce acid deposition
D) are installed in homes to decrease indoor air pollution
E) are an invasive bird species
5.
Radon, asbestos, formaldehyde, chloroform, and mold spores are all ________.
A) VOCs
B) particulates
C) vehicular emissions
D) indoor air pollutants
E) major pollutants whose concentrations and emissions are regulated by the EPA
6.
Furniture, foam insulation, pressed/laminated wood and carpets are all potential sources of ________.
A) sulfur dioxide
B) carbon monoxide
C) acids
D) formaldehyde
E) asbestos
7.
You want to maintain a healthy pond at your school site. last year another pond became eutrophic; to avoid that, you want to ________.
A) increase the carbon-based fertilizers in the littoral zone
B) provide nitrogen for good nutrient mixing in the benthic zone
C) avoid using chemical fertilizers in the pond’s watershed
D) increase the ozone in the littoral zone
E) decrease the calcium available in the profundal zone
8.
In a municipal water treatment plant, the primary treatment step consists of ________.
A) chlorinating the sewage
B) removing large debris and allowing suspended solids to settle
C) stirring the sewage to increase oxidation
D) adding bacteria to the sewage
E) filtering the sewage for all debris and grit
9.
Much of the “biosolid” material that is the end product of a water treatment plant is ________.
A) used as part of the “fill” to develop wetlands into agriculture or housing areas
B) used as fertilizer in the United States
C) placed in deep injection wells to keep it out of the water table
D) trucked to special biohazard landfills for disposal
E) loaded onto barges and sent to underdeveloped countries to use as fertilizer
10.
The use of chlorine or UV radiation in wastewater treatment plants serves to ________.
A) break down toxic organic molecules
B) remove suspended solids
C) remove phosphate and nitrate ions
D) remove hard water ions
E) kill pathogenic organisms
11.
The “blue-baby” syndrome that suffocates infants is a consequence of excess ________ in the water supply.
A) carbon
B) phosphates
C) chlorine
D) nitrates
E) E. coli
12.
The majority of the oil polluting our oceans is from large spills.
A) True
B) False
13.
Into the mid-20th century, it was common for U.S. coastal cities to dump trash into the ocean.
A) True
B) False
14.
Lead is banned worldwide as a gasoline additive.
A) True
B) False
15.
Emission trading programs have reduced sulfur dioxide levels in the U.S..
A) True
B) False

Help w/ Quiz? I think the answers are 1.E, 2.D, 3.A, 4.C,?