The fraction of oxygen in the Earth's atmosphere has always remained at about the same as it is today.
Correct Answer:
Verified
Q13: What is the reason Mercury has so
Q15: The best way to look for life
Q16: The atmosphere of Mars is mostly composed
Q19: Why did the terrestrial planets lose the
Q20: Venus's atmospheric clouds are so thick that
Q21: Which of the following processes did NOT
Q22: If an average hydrogen atom in Earth's
Q23: A gas eventually will escape from a
Q38: If sunlight broke up water molecules in
Q40: Would water molecules in Venus's atmosphere, whose
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents