According to our present theory of solar system formation, how did Earth end up with enough water to make oceans?
A) The water was brought to the forming Earth by planetesimals that accreted beyond the orbit of Mars.
B) The water was mixed in the other materials in the planetesimals that accreted at our distance from the Sun.
C) The water was formed by chemical reactions among the minerals in the Earth's core.
D) Earth formed in the relatively narrow region of the solar nebula in which liquid water was plentiful.
A) The water was brought to the forming Earth by planetesimals that accreted beyond the orbit of Mars.
You might also like to view...
A 500-kg elevator is pulled upward with a constant force of 5500 N for a distance of 50.0 m. (a) What is the work done by the 5500-N force? (b) What is the work done by gravity? (c) What is the net work done on the elevator?
What will be an ideal response?
The surface temperature of the Sun can be measured using ________.
A. Bode's rule B. the Doppler shift C. Wien's law D. Kepler's third law
An engine is designed to obtain energy from the temperature gradient of the ocean. What is the thermodynamic efficiency of such an engine if the temperature of the surface of the water is 59°F (15°C) and the temperature well below the surface is 41°F (5°C)?
a. 3.5% b. 67% c. 31% d. 17% e. 96%
The Michelson interferometer can make precise length measurements using which of the following phenomena?
a. resolving power c. force b. magnification d. interference