Anna is experiencing a restricted field of vision. another term for this is

The term is tunnel vision, restricted field of vision. A restricted field of vision less than 20 degrees wide. The ratio measurement of vision describes visual acuity, or the sharpness of vision, at 20 feet from an object, it is also describe the clarity of the vision. 

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

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