1.Population concept

Question 1

what is a birth rate

Answer 1

This is the number of live births per 1 000 people per year

Question 2

what is a death rate

Answer 2

This is the number of people who die per 1 000 people per year

Question 3

explain population growth

Answer 3

the rate which the pop changes during a year. can grow can also shrink

Question 4

explain positive growth rate

Answer 4

that pop is increasing

Question 5

explain negative growth rate

Answer 5

pop is decreasing

Question 6

explain a young population

Answer 6

birth rate is higher than rate of death. pop grows rapidly

Question 7

explain adult population

Answer 7

birth rate is not dramatically higher than death rate . slow pop growth

Question 8

explain aged population

Answer 8

birth rate and death rate are same. no growth

Question 9

explain a shrinking population

Answer 9

death rate and birth rate. pop will die out

Question 10

explain infant mortality rates

Answer 10

death rates of 1 000 live births

Question 11

explain life expectancy

Answer 11

the number of years people are expected to live

Question 12

name the factors that might effect on life expectancy

Answer 12

• Gender
• Genetic factors
• Conditions in early childhood development
• Marital status
• Economic conditions
• Education
• Lifestyle

Question 13

explain gender

Answer 13

Mortality rates for females are lower at each age than those of men . Current overall life for American men is 76.4 year and 82.9 years after 65. expectancy for american women is 81.2 and 85.5 for woman at 65
some studies show the the gap is because men are riskier and may lead to high accident rates

Question 14

Explain Genetic factors

Answer 14

there appears to be a link between genetic factors and mortality rates.
Genetics may play a role in nine of the top ten causes of death e.g. Heart disease. cancer. diabetes

Question 15

Explain conditions in early childhood development

Answer 15

• poor living conditions when mother is pregnant ;conditions at birth and early childhood

Question 16

Explain marital status

Answer 16

• Married people = lower mortality rates
  marriage improves ; cardiac health and combat loneliness
  and motivate people to make healthier choices like regular doctor visits and giving up unhealthy habits

Question 17

Explain Economic conditions

Answer 17

people in wealthier countries = greater life expectancy than those in poorer countries. wealthier countries have better medical care,healthier choices like (exercising more, smoking less and maintaining healthy weight )

Question 18

Explain Education

Answer 18

Some scientist,higher education are linked to higher economic status are linked to improved longevity
higher educate lower levels of obesity;tabaco use

Question 19

Explain lifestyle

Answer 19

historically lifestyle affected mortality include unhealthy diet ;inadequate exercise,tobacco use, use of alcohol, risky behaviour, food safety, work place safety, motor safety 
today obesity affects mortality 
today 5% adults extreme  obese 
1962  1% adults extreme  obese 
today 30% adult obese 
1962 13% adults obese 
today 70% adult overweight 
1962  46% adult overweight