Lumber

What is considered a sustainable building product according to the document?

• Concrete

• Steel

• Wood

• Plastic

Which processes are involved in the production of building materials as mentioned in the document?

• Designing, testing, and marketing

• Harvesting, mining, and processing raw materials

• Shipping, storing, and selling

• Researching, developing, and innovating

What is the cambium layer?

• A group of living cells that create new wood every spring

• The outermost layer of the tree

• The innermost part of the tree

• A type of heartwood

Which part of the tree is known for having a darker and tighter grain?

• Sapwood

• Cambium layer

• Heartwood

• Outer bark

What are the two main categories of trees?

• Deciduous and Coniferous

• Hardwood and Softwood

• Broadleaf and Needleleaf

• Evergreen and Deciduous

Which type of tree sheds large broad leaves in the fall?

• Softwood

• Coniferous

• Hardwood

• Evergreen

Which type of tree may have needles or rough leaves and is evergreen?

• Hardwood

• Deciduous

• Softwood

• Broadleaf

Which of the following is a type of softwood?

• Douglas fir

• Mahogany

• Beech

• Maple

Which of the following is a type of hardwood?

• Western larch

• Hemlock

• Spruce

• Birch

Which of the following trees is NOT listed as a hardwood in the provided material?

• Willow

• Western red cedar

• Cherry

• Sweet gum