The correct answer is - A. Rap music and country music are both popular in the United States.
The rap music and the country music are both popular in the United States. This is a nice example of cultural diversity because these two music types have different origins. While the country music is a music type created by the white settlers in America, and over time grew to be the traditional music of the United States, the rap music is a music type that was created by the black people in America. Despite being created by different racial and cultural groups both of these music types are popular in the United States and they have fans that are both white and black.
Convection is a process which transfers the heat between the temperatures when fluid (i.e. liquid or gas) is in motion. Due to the presence of heat source, water temperature increases and also it will become less dense and rise. Hot air is less dense than cold. When air rises higher in the atmosphere its pressure gets down and it becomes colder.
