Chapter 10

Question 1

What is Sustainable Agriculture?

Answer 1

farming and grazing that maintains healthy soil, clean water, pollinators, genetic diversity, and other resources needed long term

Question 2

Possible solutions to reduce fossil fuels include.

Answer 2

Increase in organic farming
Improved technologies
Greater use of genetically-modified crops

Question 3

How much energy moves to the next trophic level every time one organism consumes another?

Answer 3

10% of the energy

Question 4

Eating a lower on the food chain/more vegetarian diet is…

Answer 4

more energy-efficient and reduces our ecological footprint

Question 5

Animal agriculture accounts for how much or our green house gas emissions?

Answer 5

14.5%

Question 6

The industrialization of agriculture has

Answer 6

boosted worldwide production of food and fiber immensely, but has also brought increased pollution and resource depletion.

Question 7

Organic farming decreases efficiency

Answer 7

but also has far fewer environmental impacts.

Question 8

Food security

Answer 8

guarantee of an adequate, safe, nutritious, and reliable food supply.

Question 9

Green Revolution

Answer 9

Norman Borlaug introduced farmers to a disease-resistant, high-yield strain of wheat

Question 10

Sustainable agriculture

Answer 10

• Increase in organic farming
• Improved technologies
• Greater use of genetically-modified crops

Question 11

Norman Borlaug

Answer 11

Green Revolution

• disease resistant, high-yield strain of wheat
• pioneered organic agriculture

Question 12

We lose 5 to 7 million hectares of productive cropland per year to

Answer 12

soil degradation

Question 13

Until about 10,000 years ago out species depended on

Answer 13

hunting and gathering

Question 14

Factors involved in soil formation included

Answer 14

weather of parent material and the addition of organic material

Question 15

The o horizon is

Answer 15

primarily composed of organic matter

Question 16

WHAT is the loss of more than 10? of soil productivity in arid areas due to such factors as erosin, soil compactiction, overgrazing, and forest removal

Answer 16

Desertification

Question 17

WHAT is the buildup of salts in soils, often as a result of overittigation

Answer 17

Salinization

Question 18

the results of the overapplication of fertization can include

Answer 18

eutrophication in nearby waves

Question 19

Irrigation can result in the salinzation of soils because

Answer 19

Salts in the water are deposited on the soil surface as water evaporates

Question 20

Kwashiorkor

Answer 20

impoverished area
large abdomen
red hair

Question 21

Managing crop competitors and pests has been challenging to agronomists for centuries. One approach, integrated pest management,

Answer 21

combines a variety of pesticides to combat the pest

Question 22

The average consumer can reduce their ecological footprint by

Answer 22

eating less meat and dairy

Question 23

More than 1 in three adults are obese

Answer 23

in US

Question 24

over half of the GM crops are

Answer 24

soybeans

Question 25

Organic farming

Answer 25

has become more challenging because of contamination by GM crop varieties

Question 26

It is more energetically efficient for us to eat more

Answer 26

plant based food

Question 27

During the past half century , global food production has WHAT world population growth

Answer 27

grown at a faster rate