country: an indefinite usually extended expanse of land

endangered species: a species threatened with extinction

solid waste: A collective term for garbage, refuse, rubbish, and trash, each term representing a definite category of solid-waste materials

acid rain: rain that has increased acidity caused by environmental factors (such as atmospheric pollutants)

deserts: arid land with usually sparse vegetation

coastal flooding: Flooding that occurs from storms where water is driven onto land from an adjacent body of water

fossil fuel:a fuel (such as coal, oil, or natural gas) formed in the earth from plant or animal remains

expanding: to increase in extent, number, volume, or scope

desertification: the process of becoming desert (as from land mismanagement or climate change)

overfishing: to fish to the detriment of (a fishing ground) or to the depletion of (a kind of organism)

deforestation: the action or process of clearing of forests

global warming: an increase in the earth's atmospheric and oceanic temperatures widely predicted to occur due to an increase in the greenhouse effect resulting especially from pollution

flooding: a rising and overflowing of a body of water especially onto normally dry land