15 Questions
What is the main process that breaks down rocks into smaller particles and forms soil?
Weathering
Which of the following natural processes can cause sandstone to become sand?
All of the above
What is the role of humus in soil formation?
Humus is the organic material in soil that helps plants grow
Which of the following can cause erosion of soil?
All of the above
How does the presence of plant roots affect the weathering of rocks?
Plant roots help break down rocks into smaller particles
Which of the following is the primary cause of rock weathering?
Wind and moving water
What is humus?
Decayed organic matter in soil
Which of the following soil types can hold the most water?
Soil with a high clay content
What is the sequence of events in the erosion process?
Weathering, erosion, deposition
What can be inferred about the relationship between topsoil and humus content?
Topsoil contains more humus than subsoil
What is the primary force that causes erosion according to the text?
Gravity
What is the main component of humus found in soil?
Decayed plants
Which layer of soil contains the least amount of humus according to the text?
Subsoil
How do plant roots contribute to the weathering of rocks according to the text?
Plant roots grow into cracks in rocks and force them to split
What is the primary process by which materials are deposited to form soil layers according to the text?
Wind and water transport
Explore the differences in plant growth between sandstone and sand. Hypothesize about the natural processes that turn sandstone into sand, and design an experiment to investigate the uniformity of soil composition across various locations. Learn about erosion, humus, soil formation, and weathering processes.
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