Because Most Roots Need Gaseous Oxygen as Well as Liquid

question 27

Multiple Choice

Because most roots need gaseous oxygen as well as liquid water,the best soil for agricultural plants is

• A)sand,since it has the greatest pore spaces.
• B)clay,since it holds onto water better than silt or sand.
• C)silt,because it is intermediate between sand and clay in size.
• D)loam,which is a mixture of all size soil particles,and therefore is able to hold water but drain well.
• E)All sizes of soil particles (sand,silt,clay)are equal in soil properties.

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