Question

Logging is the main threat to old growth forests found in the northwestern united states.

Answer 1

That would be true. because logging is technically contributing to deforestation and thus causing a threat to old growth forests. the demand for resources is a factor in what causes this logging, therefore yes it is true.

-hope this helps <span />

Answer 2

True  it is logged because America needs
 more space so they cut down the forest and that is why it is the biggest problem