Air
1. The trachea connects the:
a. Larynx and bronchi
b. Pharynx and alveoli
c. Nasal cavities and pharynx
d. Nasal cavities and lungs
e. Bronchi and alveoli
2. Oxygen moves from the alveoli to the blood by:
a. Enzymes
b. Diffusion
c. Osmosis
d. Air flow
e. Hemoglobin
3. Which one of the following energy sources produces carbon dioxide?
a. Geothermal
b. Low sulfur coal
c. Solar
d. Nuclear
e. Ocean Thermal Energy Conversion
4. A drink with a pH of 3 is ____ times less acidic than your stomach:
a. 2
b. 3
c. 10
d. 100
e. Can't tell
5. All of the following statements are true except:
a. Ozone absorbs ultraviolet light
b. Ozone consists of three atoms of oxygen
c. Ozone is a dangerous oxidizing agent
d. A temperature inversion traps air pollutants near the Earth's surface
e. Air pollutions cause temperature inversions
6. Carbon monoxide inhibits cellular metabolism because the CO:
a. Is toxic
b. Stays in the lungs
c. Combines with hemoglobin
d. Forms carbon dioxide
e. None of the above
7. Greenhouse gases are so-called because they:
a. Are all poisons
b. Absorb UV light
c. Absorb and radiate heat
d. Reflect heat
e. Absorb long wavelengths and reflect short wavelengths
8. Which one of the following is essential to the existance of life on Earth?
a. Oxygen
b. Ozone
c. Sulfur dioxide
d. Carbon dioxide
e. CFCs
9. UV radiation is absorbed by:
a. Carbon dioxide
b. Water
c. Oxygen
d. Ozone
e. Sulfur dioxide
10. Which one of the following is the primary component of acid rain?
a. Oxygen
b. Methane
c. Sulfur dioxide
d. Ozone
e. CFCs
11. Which one of the following does not contribute to global warming?
a. Water
b. Oxygen
c. Carbon dioxide
d. Methane
e. CFCs
12. Humans can increase the net amount of carbon dioxide in the atmosphere by:
a. Breathing
b. Burning fossil fuels
c. Using nuclear power
d. Photosynthesis
e. b and c
13. The mechanism that refers to the heating up of the Earth's atmosphere caused by increasing certain gases is called the
a. Thermal pollution
b. Greenhouse effect
c. Temperature inversion
d. Hothouse syndrome
e. Solar heating
14. A complex mix of hydrocarbons and nitrogen oxide reacts with sunlight to produce
a. Chlorofluorocarbons
b. Smoke
c. Photochemical smog
d. Green slime
e. Free radicals
15. Sulfur oxides combine with water to produce
a. Hydrogen sulfide
b. Sulfur dioxide
c. Sulfur, hydrogen, and oxygen
d. Sulfuric acid
e. Nitric acid