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