Formation of Earth's Atmosphere (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
How long has the modern atmosphere existed in its current form?
How long has the modern atmosphere existed in its current form?
200 million years
What proportion of the atmosphere is nitrogen?
What proportion of the atmosphere is nitrogen?
Almost 80%
What proportion of the atmosphere is oxygen?
What proportion of the atmosphere is oxygen?
About 20%
Which gas is the most abundant in the atmosphere?
Which gas is the most abundant in the atmosphere?
Nitrogen
Why is oxygen crucial for living organisms?
Why is oxygen crucial for living organisms?
It allows respiration
What defines a trace gas in the atmosphere?
What defines a trace gas in the atmosphere?
Present in amounts less than 1%
Which of these is NOT a trace gas in the atmosphere?
Which of these is NOT a trace gas in the atmosphere?
Nitrogen
How have atmospheric gas proportions changed over the last 200 million years?
How have atmospheric gas proportions changed over the last 200 million years?
Remained relatively stable
Which role do trace gases play in the environment?
Which role do trace gases play in the environment?
Climate regulation
Approximately what proportion of the atmosphere is made up of nitrogen and oxygen combined?
Approximately what proportion of the atmosphere is made up of nitrogen and oxygen combined?
About 100%