ISA Certified Arborist Practice Exam

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Study for the ISA Certified Arborist Exam. Prepare with flashcards, multiple choice questions, and comprehensive hints and explanations. Get ready to ace your exam!

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What do micropores in soil tend to be filled with?

Field Capacity
Buffering Capacity
Gravitational Water
Water

The correct answer is: 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.