ISA Certified Arborist Practice Exam 2025 – All-in-One Resource for Comprehensive Exam Success!

Question: 1 / 400

What do micropores in soil tend to be filled with?

Field Capacity

Buffering Capacity

Gravitational Water

Water

Micropores in soil tend to be filled with water. Micropores are small soil pores that hold water against the force of gravity, providing water to plant roots. This water retained in the micropores is crucial for plant growth and development. Choices A, B, and C are not correct in this context because micropores are specifically known for holding water.

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