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Which of the following groups of chemicals was widely used as insulating fluid in electrical equipment?

Which of the following groups of chemicals was widely used as insulating fluid in electrical equipment?

Question 1

Which of the following groups of chemicals was widely used as insulating fluid in electrical equipment?
[removed]

Dioxins

[removed]

Polybrominated diphenyl ethers (PBDEs)

[removed]

Polychlorinated biphenyls (PCBs)

1 points

Question 2

Occupational asthma is known to be caused by synthetic organic chemicals, dusts, and _______________.
[removed]

alpha radiation

[removed]

certain bacteria

[removed]

certain metals

1 points

Question 3

Which of the following products are made using processes that involve perfluorochemicals (PFCs)?
[removed]

Consumer electronics

[removed]

Flexible plastic containers

[removed]

Non-stick coatings

1 points

Question 4

The effect of _______________ in inducing _______________ appears to have no threshold.
[removed]

lead / neurotoxicity

[removed]

methylmercury / decrement in IQ

[removed]

particulates / fibrosis

1 points

Question 5

In the United States today, young children get most of their exposure to the lead in lead paint by __________.
[removed]

ingesting chips of paint

[removed]

ingesting dust that contains lead

[removed]

inhaling airborne lead

1 points

Question 6

Which of the following is the most common medium for people’s exposures to solvents?
[removed]

Dust

[removed]

Groundwater

[removed]

Meat or fish

1 points

Question 7

_______________ are the major cause of stratospheric ozone depletion.
[removed]

Chlorofluorocarbons (CFCs)

[removed]

Perfluorochemicals (PFCs)

[removed]

Polybrominated diphenyl ethers (PBDEs)

1 points

Question 8

In the human body, carbon monoxide (CO) _______________.
[removed]

binds to hemoglobin, displacing oxygen

[removed]

compromises the body’s defenses against airborne particulates

[removed]

concentrates in the thyroid, causing thyroid cancer

1 points

Question 9

_______________ are widely used to degrease metals—for example, in the manufacture of electronic components.
[removed]

Perfluorochemicals (PFCs)

[removed]

Phthalates

[removed]

Solvents

1 points

Question 10

Hearing loss is associated not only with exposure to noise, but also with exposure to _________.
[removed]

air fresheners

[removed]

household pesticides

[removed]

secondhand smoke

1 points

Question 11

Which of the following pollutants is a key contributor to acid deposition?
[removed]

Carbon dioxide

[removed]

Carbon monoxide

[removed]

Ozone

[removed]

Sulfur dioxide

1 points

Question 12

When automobiles burn gasoline, they:
[removed]

emit ozone, which reacts with volatile organic compounds (VOCs) to form photochemical smog.

[removed]

emit VOCs, which react with NOx and other chemicals to form photochemical smog.

[removed]

increase ozone at ground level, contributing to depletion of ozone in the stratosphere.

1 points

Question 13

Many phthalates affect the _______________.
[removed]

central nervous system

[removed]

endocrine system

[removed]

respiratory system

1 points

Question 14

Sick building syndrome is a set of __________.
[removed]

construction features of a building that make people feel ill

[removed]

indoor air pollutants associated with construction materials

[removed]

symptoms that people experience when they spend time in a building

1 points

Question 15

Some likely human health impacts of polybrominated diphenyl ethers (PBDEs) are suggested by their chemical structure, which is similar to that of _______________.
[removed]

human growth hormone

[removed]

neurotransmitters

[removed]

thyroid hormones

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