The Percent of Cancers That Could Be Prevented by Changes

question 65

Multiple Choice

The percent of cancers that could be prevented by changes in lifestyle and the environment is ________.

• A)more than 90%
• B)75%
• C)more than 50%
• D)25%
• E)less than 10%

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Definitions:

Surface

The outermost layer or boundary of an object or body, which can interact with the environment or other objects.

Oceans

Large bodies of salt water that cover most of the Earth's surface and play an essential role in the global climate and living habitats.

Billion Years Ago

A time scale used to describe events and processes that occurred a billion or more years ago in Earth's history.

Burgess Shale

A Lagerstätte in Canada in which there is a wealth of preserved fossils from the Cambrian period.