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) corn B) loam C) sand D) clay
A) grains of rock B) soil properties C) dirt D) soil facts
A) humus B) loam C) sand D) clay
A) Sand B) Loam C) Humus D) Clay
A) subsoil B) topsoil C) bedrock
A) It comes in many different colors. B) It is not a good soil to grow plants in. C) It holds water well. D) It can be used in gardens as a fertilizer.
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) clay C) humus D) loam |