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Agricultural Science

11

Which of the following types of soil contains particles of diameter between 0.02 mm and 2.o mm?

A. sand

B. silt

C. gravel

D. clay

E. stone


12

A farmer cultivating leafy vegetables will require fertilizers with a relatively high content of

A. calcium

B. magnesium

C. potasssium

D. nitrogen

E. phosphorus


13

The earthworm is important to the farmer because it

A. improves soil structure

B. improves soil texture

C. destroys soil pathogens

D. adds nutrients to the soil

E. prevents soil erosion


The type of rocks formed from the molten magma is known as

A. sedimentary

B. igneous

C. metamorphic

D. schist

E. sandstone


15

The relationship between the microorganisms and plant in the nitrogen cycle is best described as

A. parasitism

B. commensalism

C. competition

D. symbiosis

E. saprophytism


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Agricultural Science

11

Which of the following types of soil contains particles of diameter between 0.02 mm and 2.o mm?

A. sand

B. silt

C. gravel

D. clay

E. stone


12

A farmer cultivating leafy vegetables will require fertilizers with a relatively high content of

A. calcium

B. magnesium

C. potasssium

D. nitrogen

E. phosphorus


13

The earthworm is important to the farmer because it

A. improves soil structure

B. improves soil texture

C. destroys soil pathogens

D. adds nutrients to the soil

E. prevents soil erosion


The type of rocks formed from the molten magma is known as

A. sedimentary

B. igneous

C. metamorphic

D. schist

E. sandstone


15

The relationship between the microorganisms and plant in the nitrogen cycle is best described as

A. parasitism

B. commensalism

C. competition

D. symbiosis

E. saprophytism


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