Lesson One
The release of ________ from a rock is one example of an agent of mechanical weathering
pressure
subsoil
Fertile soil is valuable because it is in _______ supply.
limited
You can use the ____ scale to measure how acidic a soil is.
pH
In which two months is it possible for Easter to fall?
March and April
The type of ______ and the climate determine the rate at which weathering occurs.
rock
Soil that is rich in humus generally has ______ fertility.
high
Soil ______ limits the destruction of soil through its management.
conservation
_______ is the process that forms humus.
Deposition
What do we celebrate at Easter?
The resurrection of Jesus Christ
During _______, iron combines with oxygen in the presence of water to form rust.
oxidation
______ is the solid layer of rock beneath soil.
Bedrock
When soil loses its fertility, the value of the soil is ________.
decreased or reduced
_____ horizon is the soil layer that contains little humus bur much clay and other rock particles.
B
What colors are commonly associated with Easter?
Yellow and purple
_______ weathering occurs when abrasion and other natural agents physically wear away rock.
Mechanical
Soil _______ depends on the size of rock particles in soil.
texture
Legumes such as peanuts or plants that _____ soil fertility.
restore
Cotton is one crop that takes large amounts of ______ from the soil.
nutrients
Which city holds the most popular Eastern parade in the U.S.?
New York City
Scientist infer that ancient geologic features formed through the same processes they observe today based on the principle of __________.
uniformitarianism
The ____ horizon consist of weathered bedrock
C
________ plowing involves plowing along the curves of a field's slope instead of straight rows.
Contour
crop rotation
What does Palm Sunday commemorate?
The entrance of Jesus into Jerusalem before his crucifixion