Lecture 1 Flashcards

1
Q

perlite

A

• A form of naturally occurring siliceous rock (volcanic glass)

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2
Q

what happens when you heat perlite?

A

expands to the form used in potting mixes

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3
Q

what does perlite provide to soils?

A

very light, good for drainage

no nutrients (inert)

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4
Q

Dolomitic limestone

A

limestone with calcium magnesium carbonate & calcium carbonate

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5
Q

what does Dolomitic limestone provide to soils?

A

nutrients

&

counters the acidity of the peat

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6
Q

Gypsum

A

soft sulphate mineral known as calcium sulphate dihydrate

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7
Q

what does gypsum provide to soils?

A

Provides nutrients & acts as a soil conditioner

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8
Q

what does the FAO monitor?

A

world status of food consumption & production

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9
Q

what does FAO stand for?

A

food & agriculture organization

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10
Q

FAOSTAT

A

database of food & agriculture stats

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11
Q

FAO is an agency of what organization?

A

UN

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12
Q

The FAO is composed of _____ member states working in over ____ countries worldwide

A

194

130

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13
Q

FAO def of food security

A

food security exists when all people, at all times, have physical, social & economic access to sufficient safe & nutritious food that meets their dietary needs & food preferences for an active & healthy life

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14
Q

Predicted that the population will reach _____ by _____

A

10 billion

2050

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15
Q

why has there been an increase in cals in the food supply?

A

to more livestock products & vegetable oils

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16
Q

transitional countries

A

Countries with decres in food availability

were affected by the collapse of the Soviet Union in the late 1980s to earl 1990s

17
Q

The amount of food per person has increased in the last ____ years

A

50

18
Q

BMR: 5’6” tall 130lbs female is ______ cal.

A

1430

19
Q

BMR: 5’10” tall 150lbs male is ____ cal

A

1750

20
Q

caloric requirements differ due to what factors?

A

age, gender & activity level

21
Q

FAO defines undernourished as b/w _______ cal per day

A

1600 & 2000

22
Q

USDA defines undernourished as ______ cal per day

A

< 2100

23
Q

why has there been an increase in the amount of people undernoursihed?

A

due to political instability

24
Q

wasting

A

Children with wt too low for their ht

Leads to development & growth probs

25
Q

what is the best sol’n for countries facing food crisis?

A

incres in production among locals & urban agriculture

26
Q

what effect does food aid have on countries in a food crisis?

A

required for immediate disaster, but will actually make farmers poorer in the long-term

27
Q

what are the 2 forms of natural disasters?

A

Slow onset (ex: droughts, envr degradation)

Sudden onset (ex: floods, earthquakes, hurricanes, cyclones, volcanic eruptions)

28
Q

what are the 2 forms of human-induced disaster?

A

War & conflict

Socio-economic (ex: poor economic policy, land ownership issues, collapse of infrastructure or markets etc.)

29
Q

FAO’s stats are based on per capita _____ food intake

A

daily

30
Q

does sufficient caloric intake doesn’t mean sufficient nutrition ?

A

no