Class Notes (808,088)
Canada (493,058)
York University (33,532)
Geography (282)
GEOG 2500 (9)


2 Pages
Unlock Document

York University
GEOG 2500
Nina Hewitt

Plants-Week 9 Supplementary Notes Plants provide physical support, a rooting medium, water and nutrients in solution, and are part of the parent material. Soils are described in terms of factors rather than processes, the five factors are biota, topography, climate, parent material, and time. Our focus is on processes to help us understand mechanisms of soil formation. How mineral matter in soil is made -parent material(consolidated bedrock or fragmented bedrock/glacial till) is broken down via physical and chemical weathering The purpose of physical weathering is to release minerals. Physical weathering breaks down smaller rocks into larger rocks. It increases surface area. Chemical weathering involves chemical rxns, it is the decomposition of rock involving chemical alteration. It destroys primary minerals and produces secondary ones. Physical weathering of limestone—when limestone is created, it is a mineral Chemical weathering produces fine material in soil. Some minerals are more resistant. Quartz is resistant. This has to do with its speed of weathering. Why is quartz so resistant? The molecules in qtz are held together very tightly due to strong bonds. There are no holes in
More Less

Related notes for GEOG 2500

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.