In risk group comparison table, gwladys caspars’ quick guide statement of "don’t touch it refers to biohazards in which risk group?

Which of the following was discovered in the piedmont region of north carolina in 1799?

Which of the following was a key accomplishment of the people of songhai? a. they had a strong military and became the largest empire in west africa. b. they established a center of islamic scholarship. c. they worked with iron and prospered from the gold-salt trade. d. they dominated in the trade of ivory, enslaved people, and animal skins.

What greek scientist created a screw to move water for irrigation?