Why does Earth have water?
a. photosynthesis
b. large concentrations of sedimentary rocks
c. torrential flooding in Earth’s early history
d. enormous tidal forces in early Earth history
e. outgassing and comet impacts
e
You might also like to view...
This map is a simplified weather map of the United States showing surface pressure conditions in millibars (here written out in full form). Draw in all of the appropriate isobars at 4 mb intervals. Your highest isobar value will be 1028 mb (the sequence of isobars will be 1028 mb, 1024 mb, 1020 mb, 1016 mb, etc.). Label each isobar. There is one high pressure center and one low pressure center on the map—label each appropriately (“H” or “L”). Begin by drawing your isobar lines lightly in pencil until you are certain of their location. For a review of drawing isolines in general, refer to Exercise 6. Hint: First draw in the 1020 mb isobar that will run from northeast to southwest across the middle of the country; next enclose the high pressure center; finally, enclose the low
pressure area. What will be an ideal response?
Despite a multitude of names given to describe portions of the ocean, it is more accurate to call it a single dynamic world ocean
Indicate whether the statement is true or false
Figure 2.5 Loss of nitrate ions (NO3?) from a deforested watershed in the Hubbard Brook Experimental Forest(Core Case Study, Figure 2.1, p. 30).
?
With reference to the accompanying figure, explain the significant difference that occurred between 1966 and 1970 in terms of the two lines representing the control watershed and the experimental watershed.
What will be an ideal response?
China and India are the two most populous countries on the planet. However, China's population growth has slowed and will be surpassed by India by 2030
a. True b. False Indicate whether the statement is true or false