1population growth has averaged
1.08%
2food production increased on average
2.2%
3how many people were considered chronically undernourished in devoting countries 1960 how many today
60% - 15%
4how many people suffer from malnourishment
3 billion
5what is the most common diary imbalance in the world
iron deficiency
6iodine deficiency leads to
goiter and stunted growth
7lack of vitamin A affects how many
140 million children and 350 000 go blind each year
8protein deficiency associated with
Kwashiorkor and Marasmus
9how many Canadians are overweight
36%
10how many Canadians are obese
29%
11second Congo wor
1998-2004 2.7 million died
12North Korean famine
1994-1998 600 000 died starvation
13Bangladesh famine
1974 27 000 to 1 500 000 died
14Sahel drought famine
1968 1972 1 million died
15the great chinese famine
1959-1961 between 15 and 55 million deaths
16what 3 crops provide most of the nutrients in the world
wheat rice corn
17in moist cold climate what crops are grown
potatoes, barley,Oates rye
18in wet dry climates what crops are grown
cassava ,sweet potato
19how much has mest consumption increased
10 kg/person/year to 26 kg/person/year
20what are top five meat eating nations
USA , Australia, Argentina, Brazil Isreal
21seafood is primary source of food for how many
1.5 billion
22if current fishing practices continue when will the world's fisheries collapse
2050
23when was agriculture developed
12 000 years ago
24when was the second agriculture revolution
25when was green revolution
26what fish account for 60% of commercial fish
cod,herring,jack, mackerel and tuna
27what does aquaculture destroy
mangrove forests ,wetlands it also spreads disease realease large quantities of pollution
28how much on average does food travel (american)
2,400 km
29what limits plant growth
lack of soil nitrogen, potassium and phosphorus
30how much fertilizer used in 1950
20 kg/ha
31how much fertilizer used in 2017
100 kg/ha
32GMOs may produce what
supersedes resistant to pesticides
33subsides are what
financial assistance to cover the costs associated with agriculture
34biocides
kill wide variety of living organisms
35what did ancient Sumerians use to kill insects and mites
sulfur
36ancient Chinese used what to control tests
mercury and arsenic
37Greeks and Romans used what to control pests
oil,suffer,ash,lime
38when did the ere of synthetic organic pesticides begin
1939
39who warned about the dangers of pesticide use
Rachel Carson 1962
40how much pesticide used in the USA
5.7 billion pounds annually
41what is the most abundant synthetic pesticide
organophosphates
42how many people die from pesticide poisoning every year
20 000
43horizons are produced by
chemical weathering,elucidation,illumination organic matter decomposition
44O hirizon
topmost later of soil
45soil horizon levels
O,A,B,C,R
46how many fruit and vegetables in Canada are considered organic