ISA Certified Arborist Practice Exam

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Prepare for the ISA Certified Arborist Exam with detailed flashcards and multiple-choice questions, each offering hints and explanations. Ace your certification test!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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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.