Scientific involves the work of many people exchanging, debating, testing, and retesting problems and hypotheses to improve our understanding of natural processes because 100 percent proof in science is not common.

Why was the leo frank case important ?

What impact does geography have on where people live in brazil?

Which is the best conclusion that can be drawn regarding the status of african-americans in the south in the late 1800s? a) african-americans made tremendous political, social, and economic advancements during the reconstruction era. b) passage of the 13th, 14th, and 15th amendments to the u.s. constitution guaranteed equal status and rights for all african-americans. c) the reconstruction policies enacted by the federal government were highly effective in african-american citizens transition to life after slavery. d) although african-americans had equal rights under federal law they were still economically, politically, and socially inferior to whites in the south during the reconstruction era.