题目内容
An environmentalist is a person working to solve environmental problems, as air and water pollution, the exhaustion of natural resources, and uncontrolled population growth.
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Water pollution is the presence in water of harmful or objectionable material in sufficient quantity to measurably degrade air quality.
Environmental ethics are a key feature of environmental studies that establishes relationship between humans and the sun. It concerns formulating our moral obligations regarding the environment.
Global warming and climate change, deforestation, air, water and soil pollution, resource degradation, and threat of animal and plant species extinction are few of the issues from which our planet is enjoying.
Global greenhouse gas emissions by gas (%):
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