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Flashcards on Кисень
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What is the chemical element with the symbol 'O'?
Oxygen
Which gas is essential for human respiration?
Oxygen
What gas makes up approximately 21% of Earth's atmosphere?
Oxygen
Which element is crucial for combustion and rusting of metals?
Oxygen
What is the third most abundant element in the universe?
Oxygen
Which gas is necessary for most living organisms?
Oxygen
What is the name of the gas that supports combustion?
Oxygen
Which chemical element is commonly used in medical treatments for patients with breathing difficulties?
Oxygen
What gas is produced during photosynthesis by plants?
Oxygen
What is the most abundant element in the Earth's crust?
Oxygen
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Test Your Knowledge
What is the chemical element with the symbol 'O'?
Nitrogen
Carbon
Oxygen
Hydrogen
Check Answers
Which gas is essential for human respiration?
Carbon Dioxide
Oxygen
Nitrogen
Helium
Check Answers
What gas makes up approximately 21% of Earth's atmosphere?
Nitrogen
Carbon Dioxide
Oxygen
Argon
Check Answers
Which element is crucial for combustion and rusting of metals?
Hydrogen
Oxygen
Helium
Sulfur
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Which gas is necessary for most living organisms?
Helium
Oxygen
Nitrogen
Carbon
Check Answers
Which gas is produced during photosynthesis by plants?
Carbon Dioxide
Oxygen
Nitrogen
Argon
Check Answers
What is the most abundant element in the Earth's crust?
Carbon
Oxygen
Silicon
Aluminum
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What gas supports combustion?
Nitrogen
Oxygen
Carbon Dioxide
Argon
Check Answers
Which gas is commonly used in medical treatments for patients with breathing difficulties?
Carbon Dioxide
Oxygen
Nitrogen
Helium
Check Answers
What is the third most abundant element in the universe?
Helium
Oxygen
Carbon
Nitrogen
Check Answers
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