Examlex
If a country is producing efficiently and is on the production possibility frontier, the only way to produce more of one good is to produce less of the other.
Atmospheric Layer
A region in the Earth's atmosphere differentiated by characteristics such as temperature and composition, including the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.
Ozone
A molecule composed of three oxygen atoms, significant for its role in absorbing harmful ultraviolet radiation in the Earth's stratosphere.
Smog
A type of air pollution characterized by a mixture of smoke and fog, often resulting from industrial emissions and vehicle exhaust.
Stratospheric Ozone
A layer of ozone molecules located in the Earth's stratosphere that absorbs and protects living organisms from the harmful effects of the sun's ultraviolet radiation.
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