Imagine hearing on the radio that the local weather agency has declared a high pollution advisory. what are the health risks of high concentrations of air pollution and what can be done on an individual basis to prevent or reduce problems associated with air pollution?

 The health risks of high concentrations of air pollution are aggravated cardiovascular and respiratory illness, added stress to heart and lungs, which must work harder to supply the body with oxygen, and damaged cells in the respiratory system. On an individual basis to prevent problems associated with air pollution a person could conserve energy, keep their car, boat, and other engines properly tuned, be sure their tires are properly inflated, and consider using gas logs instead of wood.

Explanation:

I got a 100%

the plates spread at mid-ocean ridges (they are divergent plate boundaries) which allows magma to rise through the weakness between the plates. the magma then emerges as lava from the boundary and cools, creating a new crust.