It should be a. Once fossil fuels are used we can not use them anymore.
<span>Faunal succession recognized in the sequence of fossils in stratified sedimentary rocks was a key concept that led to the concept of evolution of life on Earth</span>. T<span>his principle is from Willian Smith, an English geologist. It used to determine the age of the rocks and strata.</span>
By breaking into a free nation
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.
