3. World Population Growth

Question 1

explain patterns of world pop growth

Answer 1

3 billions people in 1960

7. 6 billions people in 2017
8. 8 billions people in 2100

Question 2

explain increase food production

Answer 2

fam were small bc there was not enough food for large fam. subsistence farmers
better sowing and ploughing methods would help farmers produce for markets
Industrial Revolution helped discover steam engine which helped with the increased agriculture products

Question 3

explain scientific developments

Answer 3

vaccinations prevent smallpox & discovery of penicillin
increased pop in last 100 years
doctors realise hand hygiene very important to prevent spreading of diseases
sterilisation of medical equipment by boiling equipment limited spread of diseases
refrigeration of food helped food fresh longer
canned food helps with preservation of food for longer
canned food , surplus food can be stored for consumption at later stage

Question 4

Explain improved health care

Answer 4

life expectancy has increased by 30 years since 1900
medical advances helped with understanding of germs and control of germs spreading during surgery
main reason of life expectancy increase is public health care people can visit doctors get meds and under go surgery if necessary