President james k. polk campaigned on a platform of westward expansion. how much did he live up to that promise during his presidency?
a. the united states grew by about a third.

b. the united states lost territory.

c. the united states added a small amount of territory.

d. the united states remained about the same.

A

Explanation:

The United States grew under the direction of James Knox Polk, the 11th president. throughout his mandate as president, the United States annexed Texas, The Oregon Territory, and gained significant areas due to Mexico's defeat in the Mexican American war, this area being known as the Mexican Cession which included the present day states of California, Nevada, and Arizona amongst many others.

the end of the gilded age coincided with the panic of 1893, a deep depression, which lasted until 1897 and marked a major political realignment in the election of 1896. this productive but divisive era was followed by the progressive era.

radioactive dating, also known as  radioisotope dating  is a process that in  estimating the approximate  age  of  rocks. these data can be analyzed from  the studies dealing with the  decay of the radioactive elements that are present in these rocks. in nature, there are a few types of materials or atoms which are quite unstable and they spontaneously decay or breakdown to form other kinds of atoms.