Patents

question 199

Multiple Choice

Patents

• A) slow the flow of benefits from research and development to consumers.
• B) are granted for a period of 10 years in the United States.
• C) create monopolies and are thus efficient.
• D) All of the above are correct.

---

Definitions:

Ozone

A molecule made up of three oxygen atoms that occurs naturally in the Earth's stratosphere and protects life by absorbing ultraviolet radiation.

Troposphere

The troposphere is the lowest layer of Earth's atmosphere, extending from the Earth's surface up to about 8 to 15 kilometers, where most weather phenomena occur.

Human Health

The state of complete physical, mental, and social well-being, not merely the absence of disease or infirmity.

Acid Rain

Precipitation with a lower pH than normal, caused by emissions of sulfur dioxide and nitrogen oxides from industrial processes and vehicles, which can harm ecosystems and human-made structures.