Englishfor English speakers
environmental
Adjective
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Environmental protection, education, issues, etc. all relate to the natural world: land, air, water, and living things.
The country needs help to deal with its environmental problems.
Saving the forests makes economic as well as environmental sense.
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Environmental factors, impact, effect, etc. all relate to the area around someone or something.
The disease is caused by a combination of genetic and environmental factors.
investment
Noun
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Investment is the use of money, time, or effort to make a profit.
The economic Development Board, set up in 1961 to promote foreign investment in Singapore, has attracted money from around the world.
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Your investment is the money, time, or effort you use to make a profit.
Often you'll have to wait for years before you can get even part of your investment back.
Buying an old laptop is a bad investment because a new technology is better.