1) What is weathering? a) Organic materials found in soils b) Process in which rocks are broken down into sediments and soils c) Soils that are filled with empty spaces 2) What is Humus? a) A savory, salty dip that goes well with crackers b) Realises nutrients from dead organisms and put it back in the soil c) Organic materials found in soils 3) What are pores? a) Soils that are filled with empty spaces b) Organic materials found in soils c) Process in which rocks are broken down into sediments and soils 4) What are decomposers? a) Realises nutrients from dead organisms and put it back in the soil b) When soils are carried from one place to another c) This layer has the most fresh organic material 5) What is erosion? a) Process in which rocks are broken down into sediments and soils b) When soils are carried from one place to another c) Organic materials found in soils 6) What is true about the O Horizon? a) This layers the subsoil layer b) This layer has humus c) This layer has the most fresh organic material 7) What is true about the A Horizon? a) This layer has the most fresh organic material b) This layer has humus c) This is the bedrock layer 8) Plants need ______ to grow a) Potassium b) Carbon Dioxide c) Nitrogen 9) What is leaching? a) When rainwater carries nutrients down the soil profile b) Organic materials found in soils c) Soils that are filled with empty spaces 10) What describes the B horizon? a) This layer has the most fresh organic material b) This layers the subsoil layer c) This layer has humus

Practice for Earth/Environmental Science

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