Answer:
Pollution is a serious problem that affects our ecosystem and the animals and plant in it. This can be seen in the water, air and land. Pollution of water is caused by dumping toxic chemicals into rivers, lakes, streams and oceans. The chemical can be harmful to fish, plants and marine life. Pollution also affects humans through breathing air or drinking water polluted by heavy metals like lead or mercury. Pollution of air is caused by burning fossil fuels such as coal, oil or natural gas which release carbon dioxide into the atmosphere. Carbon dioxide traps heat in the atmosphere causing global warming which has led to extreme weather conditions such as hurricanes and floods. An example of pollution of land is when pesticides are sprayed on crops which kills off insects but also poisons birds who eat the dead bugs.
Step-by-step explanation: