urbanization - the process by which towns and cities are formed and become larger as more and more people begin living and working in central areas;
biodegradable - capable of being slowly destroyed and broken down into very small
parts by natural processes, bacteria, etc.
environmentalist / environmental activist - a person who works to protect the natural world from
pollution and other threats;
natural disaster - a sudden and terrible event in nature (such as a hurricane, tornado, or flood) that usually results in
serious damage and many deaths;
hybrid cars – cars in which two or more distinct types of power, such as internal combustion engine+electric motor are used;
fertilizers - a substance (such as manure or a special chemical) that is added to soil
to help the growth of plants;
rainforest - a tropical forest that receives a lot of rain and that has very tall trees;
chemicals - substances obtained by a chemical processor producing a chemical effect;
sustainable agriculture - is the act of farming based on an understanding of ecosystem services, the study of relationships between organisms and their environment (Wikipedia)
adverse environmental effects - abnormal, harmful, or undesirable impact on environment;
climate change mitigation - consists of actions to limit the magnitude or rate of long-term climate change (Wikipedia).
emissions - substances discharged into the air (as by a smokestack or an automobile engine)
exhaust fumes - gases ejected from
an engine as waste products;
to conserve energy - use energy carefully in order to prevent loss or waste;
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