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Soils
Test Description: Soils and their characteristics
Instructions: Answer all questions to get your test result.
1) The process of growing plants without soil is
A
hyponex
B
hydraulics
C
hydroponics
D
soil-less gardening
2) The chemical and physical processes that break rock apart and remove minerals from them is
A
leaching
B
weathering
C
infiltration
D
texture
3) The acid formed when carbon dioxide given off from plant roots reacts with water in soil is
A
carbonic acid
B
acid rain
C
hydrochloric acid
D
sulfuric acid
4) Cave formations that extend from the cave floor are
A
stalactites
B
stalingrad
C
stalled formations
D
stalagmites
5) Organic fertilizers are
A
concentrated
B
short term
C
natural
D
made from petroleum products
6) The three primary nutrients are nitrogen, potassium and
A
magnesium
B
calcium
C
phosphorus
D
zinc
7) Parent material of soil is
A
bedrock
B
lichens
C
humus
D
moss
8) ___________ are the means we measure soil quality.
A
conductivity and pH
B
indicators
C
crop yield indication
D
amount of water quality
9) Soil with poor drainage and lacks air and appears as a bluish-gray color contains iron in this form
A
Ca2O3
B
CaO
C
Fe2 O3
D
FeO
10) A soil that is characterized by good infiltration, poor water-holding capacity and good aeration is
A
silt
B
clay
C
sand
D
loam
*select an answer for all questions
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