Right! The tanning industry and others relied on products such as tannic acid, wood alcohol, acetone and turpentine derived from trees in the production of their goods.

After the realization in the 1920s that over 70% of PA’s forests had been destroyed, Gifford Pinchot and Dr. Joseph Rothrock moved the timber industry in an entirely new direction. They are known as pioneers of modern forestry for their leadership in:

A. slash and burn agriculture

B. planting trees, creation of public lands
and controlling wildfires

C. faster, more efficient machines for cutting
and hauling trees