The formal duties assigned to the vice president by the constitution are
a. to provide advice to the president on issues of national security and economic policy.
b. to preside over the senate and decide the question of presidential succession.
c. to balance the ticket and preside as assistant president.
d. not defined.

Select the correct answer. which of the following statements is a scientific claim? a. the early solar system had large amounts of water; so, the oldest objects in the solar system should also be abundant in water. b. the mass of the universe is much greater than current models predict; it is not possible to explain this inconsistency. c. planet earth is abundant in water, but there is no way to scientifically determine from where earth's water originated. d. earth is shaped like a sphere even if not all of the scientific observations related to its shape support this idea.