The process of breaking down the Earths rocks into soil.
What is weathering?
100
when water and carbon dioxide are mixed together
What is acid rain?
100
delta
What landform is the result of deposition?
100
deposition
What is depositing soil somewhere else?
100
roots hold soil in place; leaves act like an umbrella-protects the soil from rain and wind.
how can plants reduce erosion?
200
Physical and Chemical
What is the 2 types of weathering?
200
clay
What is the ingredient that is made up of the smallest particles?
200
gravity
What causes landslides?
200
dune
What is a pile of sand deposited in one place by the wind?
200
build a windbreak
how can a farmer slow erosion on a hill?
300
Reacts with rocks and changes them into different materials.
What is chemical weathering?
300
Humas
What is the property that is made of decayed plant and animals?
300
yes they are
are landforms constantly changing?
300
avalanche
What is large amounts of snow moving downhill?
300
yes it is
is it possible to stop erosion?
400
what does flowing water and ice have to do with weathering?
Flowing water carries small bits of rock, soil and sand and they scrape together to become smaller.
Ice water goes into cracks and freezes the then expands forcing rocks to break.
400
sand
silt has slightly larger particles than what?
400
yes it does
does it take a long time to form?
400
soil
What is loose material that covers much of the surface of the earth?
400
when rain water moves soil downhill
What is an example of erosion?
500
what does wind and living plants have to do with weathering?
Wind carries sand which scrapes away at the rocks
living plants roots dig into rocks and cause it to break