USA HISTORY

Detailed explanation-1: -wood, the principal strengthening and nutrient-conducting tissue of trees and other plants and one of the most abundant and versatile natural materials. Produced by many botanical species, including both gymnosperms and angiosperms, wood is available in various colours and grain patterns.

Detailed explanation-2: -Natural, renewable, and climate friendly, wood is a vital part of the green economy of the 21st Century. From home building to innovative uses in modern architecture, to the thousands of products we use every day, wood is a sustainable, green material that is truly our most natural resource.

Detailed explanation-3: -Natural wood means wood that has not been painted, varnished, or coated with a similar material, has not been pressure-treated with preservatives, and does not contain resins or glues as in plywood or other composite wood products.

Detailed explanation-4: -It comes under the category of continuous resource. As we see from the above table, all the properties of woods are common with renewable sources. Hence it is a renewable source in nature.

Detailed explanation-5: -These are used in construction work, such as timber framed buildings, fencing and floorboards, in furniture or made into pallets. Branches, tops of trees and smaller trees can be used as wooden posts, or are chipped and pressed to make manufactured boards.