Acid rain - Rain mixed with acids formed by gases released into the atmosphere when fossil fuels are burned., Air pollution- The contamination of the atmosphere by noxious gases and particulates, Deforestation-The process of destroying a forest and replacing it with something else, especially by an agricultural system., Domestic garbage- Residential waste, Pesticides- a chemical used to kill pests (as rodents or insects a chemical used to kill pests (as rodents or insects), pollution - the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem, water pollution - pollution of the water in rivers and lakes, garbage- waste, oil spill- the release of a liquid petroleum hydrocarbon into the environment due to human activity, landfill- a location for the disposal of human waste be it domestic, commercial or industrial, ozone hole- a region of the stratosphere over Antarctica (and a smaller one over the Arctic) that is depleted of ozone ., nuclear waste- The radioactive products formed by fission and neutron transmutation of materials in a reactorThe radioactive products formed by fission and neutron transmutation of materials in a reactor, greenhouse effect- increase in temperature caused when incoming solar radiation is passed but outgoing thermal radiation is blocked by the atmosphere, global warming- warming that results when solar radiation is trapped by the atmosphere, hurricane- an intense, rotating oceanic weather system that possesses maximum sustained winds exceeding 119 km/hr (74 mph), industrial waste- Wastes from any factory, transportation apparatus, from scientific research, dredging, sewage and scrap metal., drought- temporary abnormalities determined by deficient precipitationtemporary abnormalities determined by deficient precipitation, endangered species- species whose numbers are so small that the species is at risk of extinction, exhaust fumes - gases ejected from an engine as waste products, flood - A form of natural disaster when there is more water than the lakes, rivers, oceans, or ground can hold

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