Why did southern business leaders want to increase the number of slaves

What is impossible to do with a hypothesis

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)