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Humus is decayed plants and animals. True or False?
true
Silt is the largest particle of soil. True or False?
false
Humus has nutrients that help plants grow. True or False?
true
How may types of weathering have we studied?
3
What are the 3 types of weathering?
physical, chemical, biological
When water freezes in between cracks in rocks, what can it do to the rock?
It can break it into smaller pieces.
Acid rain is good for rocks. True or false
false
What 2 animals can cause biological weathering?
worms and rabbits
How many layers of the soil are there?
4
Soil is made up of huge particles of rock and parts of plants. True or false?
false
What kind of weathering dissolves the minerals in a rock?
Chemical
What happens when water freezes?
It expands.
How do roots cause weathering?
They can break the rocks apart.
Clay particles are invisible to the naked eye.
true
The Grand Canyon was formed by weathering. True or false?
true
