A) Soil conservation does not work. Humans cannot prevent erosion B) The roots of plants hold the soil in place, so it won't erode away.
A) clay B) corn C) sand D) loam
A) soil facts B) soil properties C) dirt D) grains of rock
A) humus B) clay C) loam D) sand
A) Loam B) Clay C) Humus D) Sand
A) bedrock B) subsoil C) topsoil
A) It is not a good soil to grow plants in. B) It can be used in gardens as a fertilizer. C) It holds water well. D) It comes in many different colors.
A) humus B) clay C) sand D) loam
A) helps to fertilize soil B) is light in texture C) plants cannot grow in it D) has dark color
A) sand B) loam C) clay D) humus |