What is an isotope? * I. a positively charged particle
2. a negatively charged particle
3.a positive or negatively charged particle
4.an atom that has the same number of protons but a different number of neutrons

Which statement best describes evidence of a mulitcultural mix in east africa? a. because of what he learned during his pilgrimage to mecca, mansa musa was able to build a center of islamic scholarship. b. the traders of ghana brought back with them slaves from the mediterranean who taught the ghana rulers about christianity. c. clans were made up of lineages that were descendants of multiple ancestors from different regions of africa. d. swahili became a language made up of words spoken by traders along the coast of the indian ocean.

Why is it economically necessary for the east germans to build berlin wall

The platt amendment was a treaty that allowed the united states to build military bases in which country?