Deuterium is much more abundant on Venus than Earth. What do we think this fact tells us about Venus?
A. that it once had a much stronger magnetic field than it does today
B. that the greenhouse effect on Venus must have been much weaker in the distant past
C. that it has lost a tremendous amount of water as a result of molecules being split by ultraviolet light and the hydrogen escaping to space
D. that volcanoes on Venus did not outgas as much water as volcanoes on Earth
Answer:C
Deuterium is much more abundant on Venus than Earth. What do we think this fact tells us about Venus?
A. that it once had a much stronger magnetic field than it does today B. that the greenhouse effect on Venus must have been much weaker in the distant past C. that it has lost a tremendous amount of water as a result of molecules being split by ultraviolet light and the hydrogen escaping to space D. that volcanoes on Venus did not outgas as much water as volcanoes on Earth