What us state was once an independent nation?

Which of the following equations represents the right chemical process that occurs i. photosynthesis

How did the technology of the late 1800s affect the growth of cities? select one: a. cities were able to expand outward because of additions to railroads. b. electric streetcars enabled the wealthy city dwellers to move to the first suburbs. c. advances in steel and metal technology allowed for the development of the skyscraper, which allowed cities to grow upwards. d. all of these are correct.

Space is not completely empty. there are small particles in space. what happens when these particles come together?