Noise

Q46: Volatile organic compounds (VOCs)<br>A)are released from many

Q47: Why is carbon monoxide dangerous?<br>A)It results in

Q48: Photochemical smog forms when _ and _

Q49: Air pollution is<br>A)more common in economically developed

Q50: Newer,energy efficient homes have cleaner air quality

Q52: Which of the following best matches the

Q53: Which of the following best matches the

Q54: Acid precipitation<br>A)has little effect on forests.<br>B)increases in

Q55: All the following are components of the

Q56: Nitrogen dioxide is not included as one