EER 1000 Test 2 Exam Questions With Correct Answers.
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Course
EER 1000
Institution
EER 1000
EER 1000 Test 2 Exam Questions With
Correct Answers.
What was the primary subsistence mode for human survival before agriculture? -
answerhunter-gatherer
How much of Earths global water is being used for agriculture - answer70%
how did the practice of fallow come to be? - answerbased around a ...
EER 1000 Test 2 Exam Questions With
Correct Answers.
What was the primary subsistence mode for human survival before agriculture? -
answer✔hunter-gatherer
How much of Earths global water is being used for agriculture - answer✔70%
how did the practice of fallow come to be? - answer✔based around a 7 year cycle, and centered
on the importance of letting the land regenerate naturally after 6 years of harvest.
Fertilizers: - answer✔allowed land to produce so we didn't need fallow
ex: Nitrogen and phosphorus are DNA builders and historically, manure was used
by how much has global food production increased since the 1950? - answer✔food production
has more than doubled since the 1950 and this is bad, for it relies on the earth's natural resources
Industrization of agriculutre: - answer✔began in 1750 in England: used farming techniques,
machinery and increased outputs to support a growing population
what is tillage and its functions? - answer✔Tillage is turning old soil under and bring up the
new, nutrient soil so seeds are planted in richly-nutrient soil.
Functions:
- provides a seed bed
- controls weeds
- incorporates organic matter
- different soils respond in different ways
what are the 3 different types of tillage? - answer✔1. Strip of zone tillage
2. minimun tillage
what are the implications that come with irrigation? - answer✔Irrigation: we are trying to grow
crops in areas that are not designed for crop production
1. Salinization of soils: water soluble salts accumulate in the soil
The Concept of Fallow: - answer✔agricultural concept of leaving fields fallow or 'to rest'—
allowing land to rest
How many edible species of plants do humans use? - answer✔only 5000 of the total 75 000
what 4 crops make up more of the world's food production than all others combined? -
answer✔Wheat, corn, rice and potato
Ways in which we can increase food production: - answer✔1. increased irrigation
2. increasing amount of agricultural lands
3. eating lower on the food chain (more plants)
4. improve food distribution
5. stop FOOD WASTE (around 50% of all food is wasted in Canada)
Global average of consumed meat per person per year - answer✔40kg/88.2 lbs per person/year
U.S. average consumption of meat per person per year - answer✔82kg/181 lbs per person/year
How many animals are reared annually worldwide? - answer✔70 billion
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