1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kykrilka [37]
3 years ago
15

It has been suggested that occupational exposure to benzene in the petroleum industry increases the risk of developing leukemia.

The levels of benzene to which workers in this industry have been exposed were high from 1940 to 1970, but since 1970 have been significantly reduced. What kind of study design, using petroleum workers, would provide the most useful information on whether benzene affects incidence rates of leukemia in this industry? You may assume that records of individual worker assignments to jobs involving benzene exposure have been maintained by the industry.
Social Studies
1 answer:
Elza [17]3 years ago
5 0

Answer:

Retrospective cohort study

Explanation:

A cohort study is the study where people are grouped according to the factors they have been exposed to. The cohort is the group.

A retrospective cohort study is the study where the cohort who has been exposed to certain factors is compared with another cohort who has not been exposed to the factors that the first cohort has been exposed. This study is a long term study.

Here, the people's health of those that have been exposed to benzene will be compared to the the people who have been working there after 1970.

Hence, here a retrospective cohort study will be done.

You might be interested in
to validate the need for higher-education requirements, possibly the best approach, one that has withstood the scrutiny of the c
IRISSAK [1]

To validate the need for higher-education requirements, possibly the best approach, one that has withstood the scrutiny of the courts, is to <u>Use </u><u>national studies </u><u>and commission reports.</u>

What is Higher Education and why is it important?

Higher education, also known as post-secondary education, third-level education, or tertiary education, is an optional final stage of formal learning that occurs after secondary school. Universities, colleges, and polytechnics provide formal degrees beyond high school or secondary school education.

Higher education is a valuable cultural and scientific resource that promotes personal development as well as economic, technological, and social change. It encourages the exchange of knowledge, research, and innovation, and it prepares students for ever-changing labour markets.

However the option A. <u>Use </u><u>national studies</u><u> and commission reports is the correct answer.</u>

To know more about Higher Education,

brainly.com/question/27925309?source=archive

#SPJ4

6 0
1 year ago
Which alliance depicted in the map below was formed to block the spread of communism?
Molodets [167]

Answer:North Atlantic Treaty Organization

Explanation: The Western-led military alliance systems such as North Atlantic Treaty Organization, NATO was  establish in  1949 by by the United States and several western  nations during the Cold War period to prevent the spread of communism and acted as a mutual defense to curtail the Soviet aggression.

3 0
3 years ago
Mr. x follows a religion that does not propagate the caste system. also, his religion emphasizes right seeing, thinking, speech,
trapecia [35]
Mr. X can be considered as a Buddhist.
Buddhism is a religion started by Siddhartha Gautama, known as Buddha. It is a religion of peace, of meditation, of achieving nirvana, and ultimate happiness through caring about the world around you as much as yourself, your inner and outer peace. 
5 0
3 years ago
A survey of homeless youth in Canada shows a strong correlation between hunger, lack of shelter, and unemployment, on the one ha
notka56 [123]

Answer:

Richard Cloward and Lloyd Ohlin's opportunity deliquency theory.

Explanation:

Deliquency and Opportunity theory states that "American culture generally advances a notion that if we work hard and are smart and capable, we will find suitable employment, but Cloward and Ohlin noted that this isn't always the case. There aren't always enough jobs for everyone, our school systems don't prepare students equally, and we don't all live in neighborhoods that provide us with opportunities.

The opportunities we have available to us determine in many ways if we will turn to delinquency or conform to more legitimate paths. According to Cloward and Ohlin, young people turn to delinquency when they have been boxed out of more legitimate opportunities. An example is when working class young people cannot find a good paying job or achieve middle class status, and they turn to delinquency in an effort to create a better life."

Reference: Cummins, Emily. “Cloward and Ohlin's Delinquency and Opportunity Theory Video.” Study.com, Study.com, 2019

5 0
3 years ago
According to erikson, if the psychological conflict of adolescence is resolved negatively, a young person experiences
Rama09 [41]
<span>According to erikson, if the psychological conflict of adolescence is resolved negatively, young person experiences initiative versus guilt

people in adolescence age tend to be really curious and started to questions everything that threw out at them (including ethics and norms) which often caused conflict within their mind.
When these conflicts resolved negatively,  those who succumb will overwhelmed by guilt and those who don't will rebel</span>
7 0
3 years ago
Other questions:
  • You are driving on a two lane highway and the vehicle behind you wants to pass you should
    15·2 answers
  • The ______________ is an honor reserved for individuals who have provided outstanding leadership and support to enlisted members
    12·2 answers
  • What region of the u.S. Was the focus of ice-breaking operations by the u.S. Coast guard in 2011?
    14·1 answer
  • A therapist wants to help Grace recognize her mixed feelings of fear of and love for her husband and to realize that she often e
    8·1 answer
  • What is the paradox as related to slavery in the United States?
    13·2 answers
  • Which describes the goal of Roosevelt's cash-and-carry policy?
    14·2 answers
  • 4. Why does every decision involve trade-offs?
    15·2 answers
  • Someone help ima give u extra point
    6·2 answers
  • The animal that represented the central part of the Cheyenne culture was the
    5·1 answer
  • 12. What brought the declining need of cattle drives &amp; why?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!