answer those one question which include 2 sub questions in it
1. a) Mahogany and teak, both very dense and heavy types of wood:
o are an example of deciduous hardwoods that come from the southern region of the boreal forest
o are found in tropical lowland forests located near the equator
b) Ozone levels are a concern because of the
o all answers are correct
o depletion of ozone levels in the upper layers of the atmosphere
o potential that certain processes once put into
motion will become irreversible
o accumulation of ozone levels in areas of lower
portions of the atmosphere
there is a one right answer for those questions