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