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Ch 12 Soil and Agriculture

Total questions: 30

Worksheet time: 10mins

Name
Class
Date
1.

Food security has to do with

a)

A country's dependence on cash crop exports

b)

Preventing wars over diminishing food supplies

c)

The ability of a population to obtain food on a day to day basis

d)

The total volume of food a country imports

e)

The total volume of aid a country receives

2.

Anemia is a common disease resulting from a shortage of dietary

a)

Protein

b)

Iodine

c)

Iron

d)

Vitamin A

e)

Folic Acid

3.

What are two common diseases that result from protein deficiencies?

a)

Dysentery and diarrhea

b)

Dysentery and scurvy

c)

Scurvy and pellagra

d)

goiter and cretinism

e)

Marasmus and kwashiorkor

4.

The parent material layer of a soil is composed of weathered

a)

Humus

b)

Organic dirt and roots

c)

Residual aluminum and iron

d)

Soil

e)

Rock fragments

5.

Waterlogging results from

a)

Toxic metal accumulation

b)

Excessive irrigation

c)

Excessive plowing

d)

Natural wind erosion processes

6.
Movement of soil and rocks from one place to another is called...
a)
weathering 
b)
humus
c)
erosion
7.
Breaking down or wearing away of rocks is called....
a)
weathering
b)
humus
c)
erosion 
8.
Using the soil triangle  what is 20 clay, 60 silt, 20 sand? 
a)
clay
b)
silt loam
c)
loam
d)
sandy loam
9.
GMO stands for 
a)
Genetically modified organism
b)
Genetically made organism
c)
Generically made organ
d)
Generically modified organism
10.
What are monocultures? 
a)
Groups of people who practice one method of farming.
b)
Large expanses of a single crop type. 
c)
A farming method where one type of pesticide is used.
d)
A farming where multiple crops are planted in one field. 
11.
Chemicals used to kill insects, weeds, and other pests
a)
Salinization
b)
Pesticide
c)
Biological pest control
d)
Genetic engineering
12.
When land becomes more desertlike because of human activity or climate change.
a)
Erosion
b)
Desertification
c)
Salinization
d)
Compost
13.
Agriculture is best defined as 
a)
Hunting for animals, fishing, or gathering plants
b)
Altering the genetic material of plants and animals
c)
Deliberate cultivation of plants and rearing of animals for food and fiber
d)
The use of technology to increase production
14.
This is made of a mixture of weathered rock particles and organic material (humus).
a)
Soil
b)
Bedrock
c)
Regolith
d)
Monolith
15.
Which layer of soil is on bottom?
a)
Topsoil
b)
Sand
c)
Bedrock
16.
Which of the following is NOT one of the three types of soil?
a)
clay
b)
sand
c)
silt
d)
mud
17.
When plants, animals, and other organisms die, they break down and become part of the soil. What is this part of the soil called?
a)
sand
b)
silt
c)
clay
d)
humus
18.
What physical property of soil determines if it retains water?
a)
color
b)
particle size
c)
texture
d)
weight
19.
Layers of soil are also known as:
a)
Soil Profiles
b)
Soil Horizons
c)
Soil sheets
d)
Soil cores
20.
What is the layer of soil that contains humus, leaf litter, and other organic matter?
a)
O - Organic
b)
A - Topsoil
c)
B - Subsoil
d)
R - Bedrock
21.
_______ is the type of soil used most often with plants and on farms. It is a mixture of clay, sand, and silt.
a)
loam
b)
humus
c)
soil
d)
dirt
22.
Traditional farmers grow several crops on the same plot of land in a practice referred to as
a)
monoculture
b)
polyculture
c)
aquaculture
d)
slash and burn
23.

Which of the following are harmful effects of agriculture?

a)

Algal blooms due to fertilizer runoff

b)

Climate change associated with methane emissions from livestock and rice paddies

c)

Pesticide residue in food, water, and air

d)

All of these

24.
All of the following are disadvantages of raising animals in feedlots, EXCEPT
a)
less land use
b)
uses more water
c)
produces large amounts of animal waste
d)
increased antibiotic use
25.
Which type of soil conservation strategy is being  used in this picture?
a)
windbreaks
b)
contour plowing
c)
alley cropping
d)
terracing
26.
The use of certain organisms by humans to control pests
a)
Biological pest control
b)
Pesticides
c)
Yield
d)
Overharvesting
27.
Raising of aquatic plants or animals for human use
a)
Aquaculture
b)
Overharvesting
c)
Arable
d)
Famine
28.
Domesticated animals raised to be used on a farm or sold for profit
a)
Domesticated
b)
Diet
c)
Biological pest control
d)
Livestock
29.
The _______________________ was the period between 1950 and 1970 when increases in crop yields resulted from the use of new crop varieties and the application of modern agriculture techniques.
a)
drought
b)
persistent
c)
Green Revolution
d)
Industrial Revolution
30.
What is the number one job in the world?
a)
Manufacturing
b)
Doctor
c)
Advertising
d)
Agriculture

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