Multiple Choice
The present quantity of water on Earth was achieved approximately ________ years before the present.
A) one million years ago
B) 500 million years ago
C) two billion years ago
D) 10 000 years ago (end of ice age)
E) 4) 6 billion years ago
Correct Answer:

Verified
Correct Answer:
Verified
Q96: A large difference in temperature between a
Q97: "Sea smoke" is<br>A)caused by undersea volcanoes.<br>B)caused by
Q98: Glacio-eustatic factors refer to<br>A)changes in the total
Q99: Which of the following is correctly matched?<br>A)fog
Q100: Assume a warm air parcel,at sea level,has
Q102: Which of the following is true regarding
Q103: The process of sublimation (deposition)in the atmosphere
Q104: Which of the following would be true
Q105: Give a hypothetical example of stable atmospheric
Q108: The wet adiabatic rate is _ than