Air Pollution - Volatile Organic Compounds | Attempts: 219

1.

What are volatile organic compounds?

A.

A large group of silicon-based chemicals that easily evaporate at room temperature
B.

A large group of carbon-based chemicals that easily evaporate at room temperature
C.

A large group of chlorine-based chemicals that easily evaporate at room temperature

Correct Answer
B. A large group of carbon-based chemicals that easily evaporate at room temperature

Explanation
Volatile organic compounds (VOCs) are a large group of carbon-based chemicals that easily evaporate at room temperature. VOCs are commonly found in various products such as paints, solvents, cleaning agents, and fuels. They can be emitted as gases from these products and can have harmful effects on human health and the environment. Due to their ability to easily evaporate, VOCs can contribute to air pollution and the formation of smog.

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2.

Name some sources of volatile organice compounds.

Correct Answer
Paints
Cosmetics
Varnishes
Moth balls
Vehicle exhaust

Explanation
The given answer lists various sources of volatile organic compounds (VOCs). VOCs are chemicals that easily evaporate at room temperature and can be harmful to human health and the environment. Paints, cosmetics, varnishes, moth balls, and vehicle exhaust are all known sources of VOCs. These substances often contain solvents or chemicals that can release VOCs into the air, contributing to air pollution and potential health risks. It is important to be aware of these sources and take necessary precautions to minimize exposure to VOCs.

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4

3.

Short term exposure to volatile organic compounds will not cause headaches.

A.

True
B.

False

Correct Answer
B. False

Explanation
Short term exposure to volatile organic compounds can indeed cause headaches. Volatile organic compounds (VOCs) are chemicals that easily evaporate at room temperature and can be found in various products such as paints, cleaning agents, and building materials. When these compounds are inhaled, they can irritate the respiratory system and lead to symptoms such as headaches, dizziness, and nausea. Therefore, the statement that short term exposure to VOCs will not cause headaches is false.

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4.

Long term exposure to volative organic compounds can cause central nervous system damage.

A.

True
B.

False

Correct Answer
A. True

Explanation
Long-term exposure to volatile organic compounds (VOCs) can indeed cause damage to the central nervous system. VOCs are chemicals that can be found in various products, such as paints, cleaning agents, and building materials. When these compounds are released into the air, they can be inhaled and enter the body. Prolonged exposure to VOCs has been linked to various health effects, including neurological disorders and damage to the central nervous system. Therefore, it is true that long-term exposure to VOCs can cause central nervous system damage.

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5.

Volative organice compounds are not a component of photochemical smogs.

A.

True
B.

False

Correct Answer
B. False

Explanation
Volatile organic compounds (VOCs) are actually a major component of photochemical smogs. These compounds, which can be emitted from various sources such as vehicles and industrial processes, react with sunlight and other pollutants to form ground-level ozone and other harmful substances. Therefore, the statement that VOCs are not a component of photochemical smogs is false.

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