Unfortunately, U.S. tree mortality (trees dying naturally in any given year) is higher now than at any other time over the last 60 years. Natural causes of death take nearly ..... of the forests trees annually.

GENERAL FORESTRY

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Unfortunately, U.S. tree mortality (trees dying naturally in any given year) is higher now than at any other time over the last 60 years. Natural causes of death take nearly ____ of the forest’s trees annually.

A	0.01
B	0.5
C	0.1
D	None of the above

Explanation:

Detailed explanation-1: -The tree is finally killed when its roots are uprooted and it scorches and chokes in sunlight and air. This process leads to the browning, hardening, twisting and thereby, withering of the roots.

Detailed explanation-2: -Once a tree can no longer sustain the resources it needs to stay alive, it will begin to “senesce” or deteriorate with age. During senescence, the tree’s once-strong defense system will weaken, inviting a slew of insects, diseases, and other natural predators to feast on the tree.

Detailed explanation-3: -Drought conditions are the main driver of tree mortality. At the end of the summer, 94 percent of the state was experiencing severe or worse drought conditions, according to the U.S. Drought Monitor. The conditions contributed to festering tree diseases and insect outbreaks on drought-stressed trees.

There is 1 question to complete.