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100
erosion.
What is the keyterm for this, The process by which water ,ice, wind, or gravity moves weathered rock or soil?
100
Soil
What is this keyterm, The loose, weathered material on earth's surface in which plants can grow?
100
natural resource
What is the key term for this, anything in the environment that humans use.
100
crop rotation
What is the key term for this, the planting of different crops in a field each year to mountain the soil's ferility.
100
crop rotation
What is famers plant different plants every year
200
weathering.
What is the keyterm for this, The chemical and physical processes that break down rock at earth's surface?
200
Bedrock
What is this keyterm, The solid layer of rock beneath the soil?
200
sod
What is the key term for this, a thick mass of grass roots and soil.
200
Dust Bowl
What is the key term for this, the area of the Great Plains where wind erosion cau sed soil loss during the 1930s
200
permable
What is filled with tiny conected holes
300
The most important factors that determine the rate at which weathering occurs are the type of rock and climate.
What determines how fast weathering occurs?
300
Some soil organisms make humus, the material that makes soil fertile. Other soil organisms mix the soil and make space in it for air and water.
What is the role of plants and animals in soil can be conserved?
300
Soil can be conserved through contour plowing, conserveration plowing, and crop rotaion.
What are some ways that soil can conserved?
300
conservation plowing
What is key term for this, soil conservation method in which the dead stalks from the
300
oxidation
What is iron combimes with oxygen in the precence of water
400
mechanical weathering include freecing and thawing, release of pressure, plant growth, actions of animals, and abarsion. Chemical weathering include the action of water, oxygen, carbon dioxid, living organsms, and acid rain.
What are the causes of mechanical weathering and chemical weathering?
400
Scientists classify the diffrent types of soil into major groups based on climate, plants, and soil composition.
How do scientists classify soils?
400
The value of soil is reduced when soil loses its fertility and when topsoil is lost due to erosion.
how can soil lose its value?
400
uniformitarianism
What is the process today was used in the past
400
abrasion
What is the grinding away of rock by rock particals carried by water
500
Weathering and erosion work together continuously to wear down and carry away the rocks at Earth's surface
how do weathering and erosion affects earths surface?
500
Soil is a mixture of rock particles, minerals, deycayed organic material, water, and air. Soil forms as rock breaks down by weathering and mixes with other materials on the surface, soil is constantly being formed wherever bedrock is exposed.
What is soil made of and how does it form?
500
Soil is one of most valuable natural resoures because everything that lives on land, including humans, depends directly or indirectly on soil.
Why is soil a valuable resourse?
500
mechanical weathering
What is rock is physically broken into smaller pices
500
ice wedges
What is water gets into rock freezes and expands