1
Q
3 layers of soil
A
Top soil, sub soil, sub stratum and bedrock
2
Q
Top soil
A
Most useful, many insects live, there remains of dead plants, makes lots of Hummus and minerals
3
Q
Sub soil
A
Little humus and living organisms lighter colour, rock
4
Q
Sub stratum
A
Bedrock that creates soil over a long
Geography Rainforest
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Decks in class (9)
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