Environmental Chemistry Unit Review

Wearing gloves when handling mercury protects you from what mode of exposure?

• absorption

• inhalation

• ingestion

• leaching

Scientific studies have shown that the mercury content in the northern pike (a fish) is extremely high in some Alberta lakes. The pike is the last link in a food chain. Based on the information given, the scientific study most likely had to do with…

• Biomagnification

• Phytoremediation

• Biodegradation

• Dispersion

Tags

NGSS.MS-LS2-3

Which organism shown in the food chain above would contain the greatest concentration of chemical pollutants?

• phytoplankton

• krill

• tuna

• shark

Tags

NGSS.MS-LS2-3

Which beaker in the image has the highest turbidity?

• A

• B

• C

• D

Chemical reactions involving sunlight, air, car exhaust, and ozone cause which of the following to form?

• primary pollutants

• sick-building syndrome

• smog

• acid rain

The second step of ozone formation involves monatomic oxygen combining with what molecule?

• CO2

• O2

• NO2

• 2H2O

Which of the following is a atmospheric nitrogen?

• NO₃^-

• NO₂^-

• N₂

• NH₃

Reactions that are initiated by the sun.

• Photochemical reactions

• Photochemical oxidants

• Volatile organic compounds

• Combustion

Tags

NGSS.MS-LS1-6

Sulfur Dioxide (SO2) and _______combine in the atmosphere to create acid rain or fog

• Carbon dioxide (CO2)

• Nitrogen Dioxide (NO2)

• Ozone (O3)

• Carbon monoxide (CO)

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The main elements in CFCs are

• Carbon, Calcium, Francium

• Carbon, Chlorine, Fluorine

• Chromium, Chlorine, Fluorine

• Chlorine, Fluorine, Calcium

Tags

NGSS.MS-PS1-1