Pollution is everywhere, not just outside, but inside the home, too. It is a hazard and is destroying Earth. There is smog, acid rain, greenhouse effect, and holes in the ozone layer. Exhaust from burning fuels and cars pollute the air and noxious gases cause smog and acid rain. People can cause pollution in their own homes by smoking or even cooking.
Smog is a big part of outdoor air pollution that is caused by automobile exhaust and mainly affects large industrial cities. Smog occurs during the warmer months of the year. Temperature inversion is also a hazard that happens when the air closer to the earth is cooler than the air above it. The pollution cannot rise and disperse evenly. Cities that are near or around mountains experience trapping pollution, also. Inversion is a hazard during any time of the year.
Another pollution hazard is acid rain. Acid rain occurs when sulfuric acid mixes with water droplets in the atmosphere. Acid rain damages plants and can change the chemistry of lakes and streams.
A. In the summer
B. In the winter
C. All year long