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- 1. Multiple ChoiceWhat is the main purpose of microbes in the soil?to release the nutrients in rocksto cause diseaseto feed animals
- 2. Multiple ChoiceWhich describes the soil layers in order from the surface?top soil, bedrock, horizon C, subsoiltop soil, subsoil, horizon C, bedrocktop soil, horizon C, subsoil, bedrock
- 3. Multiple Choice
Which of the following is NOT one of the three layers of soil?topsoilundersoilsubsoilbedrock - 4. Multiple ChoiceWind blowing dirt and sand through the air is an example of...weatheringerosion
- 5. Multiple ChoiceSoil is made ofweathered rocks and mineralsdead plants and animalsair and waterall of the above
- 6. Multiple ChoiceHumus is.....the dead parts of plants and animals in soil.A food we eat with pretzels.The tiny particles inside of soilThe roots that come off of a plant and live in soil.
- 7. Multiple ChoiceWhich of the following is NOT one of the three types of soil?claysandsiltmud
- 8. Multiple ChoiceEllen grabs a topsoil sample in her hand. She rolls it into a ball. The soil feels gritty and the ball falls apart. What part of the topsoil most likely made the topsoil feel gritty?claysandsilthumus
- 9. Multiple Choice
Select the definition of soil
layers of soil with distinct physical properties in a soil profile
mixture of weathered rock, organic material, water, and air
decomposed organic matter
vertical section showing the soil horizons
- 10. Multiple ChoiceThis type of soil is carried by water and left as sediment.bedrockloamsiltclay
- 11. Multiple ChoiceFertile soil is rich in _________.ConservationBedrockWaterNutrients
- 12. Multiple Choice
Which horizon is made up of partially weathered rocks?
Horizon A
Horizon B
Horizon C
Horizon D or R (Bedrock Layer)
- 13. Multiple ChoiceDoes the vertical cross-section of soil in the picture show a soil profile or a soil horizon?Soil ProfileSoil Horizon
- 14. Multiple ChoiceThe picture shows temperate soil. This forms moderate rainfall and temperature regions, so which of the following characteristics seems to fit best? The soil contains...Much organic material and grows crops wellMuch organic material and does not grow crops wellLittle organic material and grows crops wellLittle organic material and does not grow crops well
- 15. Multiple Choice
All of the following processes help form topsoil except...
movement of oceans
decay of plants
weathering of rocks
decomposition of animals
- Answer choicesTagsAnswer choicesTags