Australia is often called the "land down under" because it lies south of the
a. prime meridian.
b. tropic of capricorn.
c. equator.
d. tropic of cancer.

The answer would be "equator", because the "prime meridian" is vertical, so it wouldn't make any sense.

Air pollution: “combustion results in gases such as nitrogen oxides, nitrogen dioxide and particulates. the main causes of air pollution include transport, domestic combustion and industrial processes. pollutants from these sources can cause problems in the immediate vicinity and a distance away.”

Catac, dry land,and lizards