ISA Certified Arborist Practice Exam

Disable ads (and more) with a membership for a one time $2.99 payment

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!

Practice this question and more.

What is the rate at which water soaks into the soil called?

Macronutrient
Nitrogen
Infiltration Rate
Water Holding Capacity

The correct answer is: Infiltration Rate

This is because macronutrients (choice A) refers to the essential nutrients needed in large quantities for plants, such as nitrogen (choice B). Water holding capacity (choice D) refers to the maximum amount of water that soil can hold, while infiltration rate (choice C) specifically refers to the speed at which water moves into the soil. Therefore, infiltration rate is the most accurate term that describes the rate at which water soaks into the soil.