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Agriculture Test Guarter 2 :1 > Ch1 > Flashcards

Ch1 Flashcards

0
Q

What is air made of

A

Oxygen nitrogen mix of other gases

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1
Q

What is air

A

Colorless,tasteless, order less mixture of gases

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2
Q

Why is air quality dependant on conditions all over the globe

A

Air moves

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3
Q

How much oxygen should be present in order for humans to survive

A

29%

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4
Q

What are the major threats to air quality

A

Radio active dust, sulfur, pesticides, lead

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5
Q

What is the greenhouse effect

A

When air is heated by uv lights and heat gets trapped in the earths atmosphere

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6
Q

What are the methods used to maintain and improve air quality

A

Keep ac maintained, filters, vintilation

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7
Q

What is water

A

Colorless odorless tasteless liquid

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8
Q

What is soil

A

Top later of the earth made up of organic matter for growing plants

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9
Q

How do characteristics of the land effect water quality

A

Runoff flooding erosion

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10
Q

What are the types of soil water

A

Gravitational
Capillary
Hygroscopic

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11
Q

What is erosion

A

The breakdown of something

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12
Q

What are major causes of erosion

A

Wind and water

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13
Q

What factors affect soil erosion by wind and water

A

Plants, farming practices, construction sites

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14
Q

What are the practices used to conserve water and soil

A

Wind breaks, water restrictions, no till, terrace farming

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15
Q

What are the threats to water quality

A

Chemicals, trash, oil, nuclear waves, pesticides

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16
Q

Why is water called a “universal solvent”

A

Change/dissolve substances

17
Q

Describe the water cycle

A

Water forms into clouds
Precipitation falls to earth
Runs off to surface areas
Percolation/ground water

18
Q

What are the ways the land holds water

A

Ground water

Surface water

19
Q

What is plant growing media

A

Material plants grow in

20
Q

How did early people improve soils

A

Accepted it or moved to better soil

21
Q

Why are misses used for growing plants

A

They hold a lot of water

22
Q

What are the two mineral based plant growing media used by horticulture industry

A

Perlite

Vermiculight

23
Q

What is parent material

A

Where soils develop

24
Q

How are parent materials named

A

Based on how they were formed

25
Q

How are soils classified

A

physical chemical and topographical

26
Q

What are the three classifications given to soils

A

Coarse
Medium
Fine

27
Q

What are capability classes

A

Soil grouped based on how they can be used

28
Q

What are capability subclasses

A

Soil limitations

29
Q

What is a soil profile

A

See the different layers of soil

30
Q

What is a soil horizon

A

Layers of soil

31
Q

Describe the four soil horizons.

A

O- top layer, decomposed materials
A- under o decomposed materials
B- subsoil clay mineral
C- regolith rock material

32
Q

What are soil textures

A

What it feels like and size

33
Q

What is soil structure

A

Arrangement if soil into aggregates

34
Q

What are aggregates

A

Sand silt clay. Held together by organic matter gel

35
Q

Why are aggregates important

A

Holds water, reduces damage from rain fall

36
Q

What are some benefits of organic matter in soil

A

Nutrients and water holding

Improve soil structure more porous

37
Q

What are fertilizers

A

Chemical natural substance added to soil or land

38
Q

What are the organic and inorganic sources of fertilizers

A

Inoganic- chemicals salt

Organic- manure

39
Q

What are the methods used for applying fertilizer

A 
Band application
Top dressing 
Side dressing 
Foliure spray 
Starter solution

Agriculture Test Guarter 2 :1 (1 decks)

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