Chapter 8

Question 0

Parasitic worms are very common in areas where

Answer 0

Sanitation is poor

Question 1

Historically the greatest threats to human health came from

Answer 1

Pathogenic organisms

Question 2

Hazardous substances blank while toxins are blank

Answer 2

Are Dangerous substances,poisonous substances

Question 3

When comparing the toxicityof natural and synthetic chemicals, natural chemicals are blank synthetic chemicals

Answer 3

On average, just as toxic

Question 4

Which of the following is a true statement?

Answer 4

A substance is toxic, it’s toxicity is higher depends on its form and where it is present in the environment

Question 5

Among the most important characteristics of chemicals in determining their environmental risks is/are

Answer 5

All these are correct toxicity persistence reactivity solubility

Question 6

Have a persistent toxic chemicals

Answer 6

Retain their toxicity as a cycle through the food chain in the Environment

Question 7

LD50 is a dose of toxic chemical that

Answer 7

Half of the test population is sensitive to

Question 8

As a society, we usually focus this money and attention on health risks that are

Answer 8

Most well publicized and frightened

Question 9

With respect to exposure to toxins which statement is correct?

Answer 9

Acute effects are the immediate results of the single exposure, chronic effects are those that are long lasting

Question 10

Which of the following presents the most lifetime risk of death to people in the US?

Answer 10

Poisonous snakes

Question 11

Which of the following presents the greatest lifetime risk of death to people in US?

Answer 11

Plane crashes

Question 12

World health organization regards health as primarily a matter of blank well-being

Answer 12

Physical mental and social, or social and mental

Question 13

The starkly which of the following considerations in setting standards for toxic exposure has been emphasized the least?

Answer 13

Information about how toxins effect natural ecological systems.

Question 14

Which of the following factors would explain this seemingly irrational behavior of a father who smokes , High risk factor for baby while throwing away his babies teething rings that may contain path lights seemingly low risk factor for baby.

Answer 14

All these are factors can lead to the realtor of the irrational behavior demonstrated by the father. Irrational fear of certain technologies,people downplay risks that are associated with activities they are committed to or enjoy, news media can give a biased view, but people do not understand the concept of probability