Arborist Certification Exam Study Guide 400 Questions with Correct Answers Explained Latest Updated 2024

Arborist Certification Exam Study Guide 400 Questions with Correct Answers Explained Latest Updated 2024 The ideal soil ratio for solids to pore space is: (A) 20:80 (B) 35:65 (C) 40:60 (D) 50:50 - Correct Answer An even split between the amount of solids and the amount of pore space is the ideal condition. This allows the pore space to contain sufficient amounts of water and air while maintaining the soil integrity. The solids ideally are 45% mineral and 5% organic matter. The answer is (D) What is the correct scientific name for the oak tree genus? - Correct Answer The genus is the first part of a tree's scientific name. The oak tree is designated as Quercus. The answer is (A) Which of the following is not one of the five major categories of soil horizons? (A) O (B) E (C) N (D) B - Correct Answer The five major categories of soil horizons consist of O, E, A, B, and C The answer is (C) Loam is least composed of what soil classification? (A) Sand (B) Silt