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variety - n. a particular kind of person or thing
pesticide - n. a chemical that is used to kill animals or insects that damage plants or crops
transform - v. to change something completely - and usually in a good way
depletion - n. to use most or all of something important; to greatly reduce the amount of something
irrigate - v. to supply something (such as land) with water by using artificial means (such as pipes)
tractor - n. a large vehicle used to pull farm equipment
biodiversity - n. the existence of many different kinds of plants and animals in an environment
malnourishment - n. lack of proper nutrition
climate change - n. a change in global climate patterns caused by an increase in carbon dioxide resulting from the use of fossil fuels (coal and natural gas)
