Wich of the following questions is best considered as scientific?
A:who invented electricity?
B:how long did dinosaurs live on earth?
C:how many koala are there in Australia?
D:Dies the amount of salt and water affect the temperature at wich it boils?
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Answer:
A. Nikola Tesla
B. 65 million years ago
C. 100,000 koalas
D. The boiling point of water is increased slightly, but not enough that you would notice the temperature difference. The usual boiling point of water is 100 °C or 212 °F at 1 atmosphere of pressure (at sea level).