10. Trade exparsion has been a leading factor in plobal integration, especially since the early __ 1760s 1890s 2000 s 1970s

## Step 1<br />The question is asking for the time period when trade expansion has been a leading factor in global integration. The options provided are 1760s, 1890s, 2000s, and 1970s.<br />## Step 2<br />The 1760s and 1890s were periods of significant global exploration and colonization, but these periods were not characterized by the same level of trade expansion as the 1970s.<br />## Step 3<br />The 2000s, while a time of significant global integration, were not the leading factor in this process.<br />## Step 4<br />The 1970s, however, were a time of significant trade expansion, with the establishment of the General Agreement on Tariffs and Trade (GATT) in 1947 and the subsequent increase in international trade. This period saw a significant increase in global integration, making it the correct answer.