A cross-sectional study was conducted on the association between passive smoke inhalation and the occurrence of dental caries in children. (Passive smoke exposure occurs when children live with family members who smoke). The investigators thought that conclusions from this study were limited because of the cross-sectional nature of the data. Suppose that they asked you for advice and you told them that they should have conducted a prospective cohort study because it is a better study design. Which type of cohort is the best for this situation?A. Special cohortB. Case cohortC. General cohortD. Experimental cohort

Answers

Answer 1

Answer:

The correct answer to the following question will be Option C (General cohort).

Explanation:

A bunch of individuals with a quantitative variable (including such maturity or organization leaders) specific to something like a cohort of premedical graduates in a longitudinal survey.A general cohort of samples seems to be designed for specific experiences including such genetic components including certain vitamin utilization, oral contraceptive utilization, as well as habits like cigarettes excessive alcohol consumption.

The other three choices are not related to the given circumstances. So that Option C seems to be the right answer.


Related Questions

Which of these statements is correct?
a. A globe is more accurate than a map as it follows the curvature of the Earth. It is therefore able to give the correct size of continents and show distances without distortions.
b. A map is more accurate than a globe as it is drawn very precisely and carefully by cartographers.
c. A map is more accurate than a globe as it is two dimensional, unlike a globe, and can show us the whole Earth at a glance.
d. A globe is more accurate than a map because it can be turned around its axis just like the real Earth.​



**do fast please**

Answers

Answer:

a. A globe is more accurate than a map as it follows the curvature of the Earth. I t is therefore able to give the correct size of continents and show distances without distortions.

Explanation:

A map presents a distorted view as it is flat. On the contrary, a globe presents a less deformed view as it is round in shape.

What civilization is named after the river nearby?

Answers

ANSWER AND EXPLANATION

mesopotamia civilization first began about 3500 BCE , along the Tigris and Euphrates Rivers. in the middle East, the name given to that civilization , mesopotamia means "between rivers"

What happens when a bank is required to hold more money in reserve?


It has less money for loans


It has less money for operations


It has less money for interest payments


It has less money for withdrawals


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Answers

Answer:

The correct answers are (A) and (C)

Explanation:

When a commercial bank is required to hold more money in reserve, this is usually a government or central bank policy (contractionary monetary policy) to reduce the amount of money in circulation.

The bank will then have less money to loan out and also less money to pay interest on loans. This gives the answers (A) and (C).

As for (B) and (D), cash-reserve ratio does not affect the basic flow of money in bank operations and a bank can't have less money for its customers to withdraw just because they are required to hold more money in their reserve. Every saver or customer remains entitled to all the money he saves in the bank.

Statements that explains what will happen if a bank is required to hold more money in reserve are;

It has less money for loans.

It has less money for interest payments.

Holding more money in reserve by bank would bring about reduction in the amount of money that banks have available to lend.

Then, the supply of money will now reduce, and this will make banks to charge more in order to lend out, which means the interest rates will goes up.

Therefore, option A ,C are correct.

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Based on fault trenching work, geologists can use broken soils (that geologists date in a lab using charcoal) to identify past earthquakes. What is the average duration between Hayward fault earthquakes indicated by these data

Answers

Answer:

140 years is average duration of an earthquake.

Explanation:

The Hayward fault is a geologic fault that is capable of massive destruction and is 119 km long fault western base of hills of San Francisco and is parallel to the San Andreas fault. The occurrence of an earthquake of 6.8 magnitudes in 1868 was biggest earthquake in California history.  Recently various geologists have taken time interval of the past five large earthquakes and based on the past earthquakes data the interval of 140 years it will take to the formation of a large earthquake.

Limestone is formed primarily through ________. chemical interactions between ocean bottom sediments and ions in sea water direct precipitation from seawater biochemical sediments secreted by marine organisms evaporation of calcite rich seawater

Answers

Answer: Limestone is a carbonate sedimentary rock that is often composed of the skeletal fragments of marine organisms such as coral, foraminifera, and molluscs. Its major materials are the minerals calcite and aragonite, which are different crystal forms of calcium carbonate (CaCO3).

Explanation:

The line of longitude 135 E. runs through....would it be India japan or vietnam

Answers

Answer:

The Chinese city of Chongqing might be japan!

Explanation:

The 135°E meridian of longitude crosses several oceans and seas, and also parts of these land masses . . .

-- Siberia (Russia)

-- Japan

-- Pulau

-- Papua

-- Australia

-- Antarctica

The line comes within 11 miles of one point in China, but it never actually crosses any Chinese territory.

It doesn't come anywhere near any part of India or Vietnam.

how can students help pakistan become a better place?

Answers

Answer:

look after the people and care for them

there are a lot of poor people out their who have no food or water but no-one

helps them. when they have the money they can't even sacrifice a bit of it to the poor. this is exactly how we should help our country to become the best.

by doing this we will find happiness

Which is an example of human impact on climate changes

Answers

Expansion of greenhouse gases as CFCs used in Refrigerators and Sprays

Greenhouse gases are said to be a reason for global warming

what is global warming​

Answers

Answer:

Global warming is the process that causes the Earth's temperature to rise and makes the Earth warmer. Humans play a large role in the increase in the Earth's temperature. Hopes this helps you!!

Explanation:

Why are geomorphologists and oceanographers concerned

about the oceanic environment ?​

Answers

Coral is getting bleached because of overwhelming comerse and CO2, fish are dying and ice caps are melting.

15. A lot is known about how ancient Egyptians used astronomy.
a. True
b. False

Answers

Answer:

B

Explanation:

how does drought affect water supply?

Answers

Answer:

bcuz people have no water to drink to survive, no water equals no food for plants

Explanation:

i have no idea if thats correct, i just guess

Answer:

Drought affects water supply by taking up water by the water cycle. The water get evaporated from the ground. This leads to the lack of water in lakes or puddles or rivers. When these bodies of water dry up, there are no places to take water from. This will lead to a lack of distribution of water. Also, a lack of water can dry up your crops. This will end up will you and your family dying from lack of water and food. This will also affect animals because they need hydration.

Hope this helped

An increase in average temperature around the planet is known as:

A: sea level

B: weather acceleration

C: Global Warming

D: Climate elevation

Answers

The awnser will always be be C the word global should be your main word in the question

Answer:

C

Explanation:

because all around the world there are people that are destroying the economy and the world is getting hotter every year

Because Hindus believe that every living thing as a. A believe in a single god B honor animals C ignore caste rules D Believe the soul remains in the body forever

Answers

Answer:

Honor animals

Explanation:

In simple words, Hindus refers to the individuals who follow he religion of Hinduism. This religion is largely followed in India and is considered to be the oldest religion among others.

Hindus believe to have more than 3.3 billion gods and they also believes their river and mountains to be Ganga. Hinduism is considered to be a peaceful religion and it honors and respect the lives of every living begin.

As per Hindu mythologies, Soul can never die it only travels from one dimension to another after leaving the body.

Haiti’s independence from France was achieved through a __________. A. campaign by the US B. peaceful transfer of power C. slave rebellion D. military effort by Cuba

Answers

Answer:

c

Explanation:

Suggest 3 ways in which Pakistan can address or improve the problem of illegal migration.

Answers

Answer:

Pakistan can deal with issues of illegal migration by:

1. Providing a conducive environment by the country. This will help solve the issue as a result of an enabling and conducive environment translating to an a good and better economy.

2. Religious extremism should be throughly frowned at as people who practice a different religion to Islam which is propagated my the country may decide to embrace illegal migration

3. Security apparatus of the country should be strengthened. This is because when there are huge threats to lives and properties they may decide to tow the path of illegal migration.

In the lower right part of the map, what is the relative age of the bright red rock layer compared with the pale green layer? Note that the thin blue line running through the red layer represents the Colorado River, which flows through the bottom of the Grand Canyon.

Answers

Answer:

515 million years.

Explanation:

The grand canyon is one of the most complex rocks structures on earth with about 40 main sedimentary rocks layers combined and is 200 million to 2 billion years old.  The canyon is formed by the three sets of rocks as Vishnu basement rocks that includes the shists, granite. The grand canyon superimposed rocks like the chuar group, under group. The pale green rocks are relatively 515 years old in the Cambrian rock formations. And the red rocks are the Permian rocks formation of 340 million years. Thus the younger rocks are at the top and older green at the bottom.

Based on graph 1 do you think the changes in solar intensity are a significant cause of the trend in global Temperatures why or why not

Answers

Changes in solar intensity do not seem to contribute to the change in global temperatures. If they did, the temperatures would rise and fall with the Sun’s energy. Instead, the global temperatures continue to rise despite the Sun’s natural fluctuations.

Changes in solar intensity do not seem to contribute to the change in global temperatures. If they did, the temperatures would rise and fall with the Sun's energy. Instead, global temperatures continue to rise despite the Sun's natural fluctuations.

What is the global temperature record?

The global temperature record shows the fluctuations in the temperature of the atmosphere and the oceans through various periods. There are numerous estimates of temperatures since the end of the Pleistocene glaciation, particularly during the current Holocene epoch.

Some temperature information is available through geologic evidence, going back millions of years. More recently, information from ice cores covers the period from 800,000 years before the present time until now. A study of the paleoclimate covers the period from 12,000 years ago to the present. Tree rings and measurements from ice cores can give evidence about the global temperature from 1,000-2,000 years before the present until now.

The most detailed information exists since 1850 when methodical thermometer-based records began.

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why boric acid considered as a weak acid​

Answers

Answer:

Boric acid is considered as weak base because it cannot dissosiate H+ ion easily....

Hope it helps.....

Answer:

Boric acid is considered as a weak acid because it is unable to act as a proton donor but acts as a Lewis acid by accepting the hydroxyl ion from water molecules.

In other words,boric acid is not able to release H+ ions on its own but do so by accepting OH- ions from water molecule to complete it's octet and in turn releases H+ ions.

hope this helps...

Good luck on your assignment...

analyze the historical source map of africa in 1888 which illustrates the territories controlled by various european powers.

Answers

Answer:

Belgium and Great Britain are the two European powers which controlled most of Africa.

Explanation:

In 1888, most of the African land was captured by Great Britain while Belgium rule over Congo which was an enriched land having rubber, diamond and gold reservoir. Great Britain had a powerful army and latest technology due to which they rule on the most areas of the Africa. The areas under British rule were Egypt, Sudan, Kenya, Uganda, South Africa, Gambia, Sierra Leone, Zambia, Botswana, Nigeria, northwestern Somalia, Zimbabwe, Ghana, and Malawi

2 reason why the sun is a star

Answers

Answer:

2 reasons why the sun is a star : Stars are space objects that produces their own energy through fusion reaction of gasses. They are like round, gas burning, energy producing luminous orbs. Sun- the star of our solar system is a star because it produces energy by the fusion reaction of Helium turning into Hydrogen.

You're studying a region, and have a political distribution map that you can
use. What information can you learn from this particular map?
O A. Areas where one religion or another dominated
B. Where various languages were spoken
C. Where voting could or could not take place
D. Ethnic divisions and diversity in the territory

Answers

Answer:

C

Explanation:

Location of major rivers or large lakes,

Boundaries between counties and states

Learn about registered voters

Learn about political parties

Studying political distribution map of a region can provide information about where voting could or could not take place in the region.

What is voting?

Voting is a method through which a group of people like a community, electorate or general population of a region make a collective decision by establishing a majority. The process of voting involves choosing one of the provided options by posting a ballot, show of hands known as vote. In a democracy, a government is chosen by voting in an election: a way for an electorate to elect, that is a choose of an individual to select their favorite among several candidates for rule.

Therefore, (C) option is the correct answer.

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A(n) is a region of air that could be as big as two U.S. states and has
consistent pressure and temperature throughout.
A. disturbance
B. depression
C. air mas
D. thunder network

Answers

Answer:

c. air mas hopefully this help

Mountains
Atlantic Ocean
Sahara Desert
Western
Desert
Libyan Desert
Red
Sea
Nile River
N
w
E
S
Which physical feature is located west of the Libyan Desert?
Red Sea
Nile River
Sahara Desert
Western Desert

Answers

Answer:

Western Desert

Explanation:

The Western Desert comprises two-thirds of the land surface of Egypt and covers an area of about 262,800 square miles (680,650 square km). From its highest elevation—more than 3,300 feet (1,000 metres)—on the plateau of Al-Jilf al-Kabīr in the southeast, the rocky plateau…

how does the chocolate industry connect do different industrial sectors

Answers

Answer:

Explanation:

Chocolate manufacture requires many things.

It requires milk which requires milk industry, it needs coco which they get from other industries or from the farmers, etc

So in this way it connects to different industries

hope this helps

plz mark it as brainliest!!!!

what is tje worlds largest mountain​

Answers

Answer:

MOUNT EVEREST

Explanation:

MOUNT EVEREST IS THE WORLD LARGEST MOUNTAIN IN HIMALAYA RANGE.

Answer:

tje is not a name of any mountain

Explanation:

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