What is this??? it's in geography and it's an instrument but idk what it is

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)

Which of the following events did not occur as a result of china’s open-door policy? a. trade between japan and china was encouraged. b. all countries were given equal access to chinese ports. c. foreign influence in china increased. d. the influence of the communist party weakened.

Due to its high humidity, the south often experiences severe storms with heavy rains called cyclones ,hurricanes, monsoons, tornadoes