In my opinion, the greatest invention is harnessing natural sources of energy like solar, wind, hydor, etc to generate electricity. And the worst is the use of fossil fuel like coal, gas, crude oil,

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In my opinion, the greatest invention is harnessing natural sources of energy like solar, wind, hydor, etc to generate electricity. And the worst is the use of fossil fuel like coal, gas, crude oil, etc

2022년 3월 30일 오전 6:40

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In my opinion, the greatest invention is harnessing natural sources of energy like solar, wind, hydro, etc to generate electricity. And the worst is the use of fossil fuels such as coal, gas, crude oil, etc

Hi Reena, 'like' is fine to use when speaking, but it's better to use alternatives when writing. Also, an invention is a thing - lightbulb, wheel, machine. You have referred to processes in your text. A wind turbine is an invention, but the process of harnessing natural resources is an innovation.

2022년 3월 30일

In my opinion, the greatest invention [in history] is harnessing natural sources of energy, like solar, wind, hydor, etc.; to generate electricity. And the worst is the use of fossil fuels, like coal, gas, crude oil, etc.

2022년 3월 30일

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