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Question # 21

Raising soil grade by more than 6 inches over a tree’s root zone usually results in:

Options:

A.

Improved growth due to extra soil nutrients

B.

Decline due to reduced root oxygen availability

C.

Enhanced anchorage and stability

D.

Increased resistance to pests

Viewing question 21 out of 72 questions
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Name Certified Arborist
Code Arborist
Vendor Career
Certification International Society of Arboriculture (ISA)

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