21. Federal judges serve until which of the following occurs? a. They retire voluntarily.
b. They are impeached and convicted.
c. They resign.
d. All of these are correct.
e. They die.

What is the formal role of congress on amending the constitution

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.

Rock concerts musical instruments cell phones and contact lenses are just a few things that are possible because of