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Questions and Answers
Who is credited with the development of the steam engine in 1781?
Who is credited with the development of the steam engine in 1781?
- Antoine Lavosistier
- Robert Wittaker
- J.L. Proust
- James Watt (correct)
In which year did Arrhenius propose the theory of acids and bases?
In which year did Arrhenius propose the theory of acids and bases?
- 1887 (correct)
- 1789
- 1909
- 1969
Who studied food chain and energy flow in 1942?
Who studied food chain and energy flow in 1942?
- Eichler
- Lindeman (correct)
- Charles Elton
- Robert Wittaker
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Study Notes
Key Inventors and Discoveries
- James Watt is credited with the development of the steam engine in 1781.
Development of Scientific Theories
- Svante Arrhenius proposed the theory of acids and bases in 1887.
Ecological Research
- In 1942, Raymond Lindeman studied food chains and energy flow.
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