Who invented bifocal eyeglasses and a clean-burning stove, and helped develop the U. S. postal system?

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

Select the correct answer. a chestnut-colored horse mates with a white-colored horse to produce a brown and white spotted offspring. what is the type of inheritance pattern?

What element is able to combine with itself and hydrogen to form large molecules ?