This scientist actually discovered oxygen although another scientist named it?

answer:

joseph priestley

joseph priestley (1733-1804) — unitarian minister, teacher, author, and natural philosopher — was the earl of shelburne's librarian and tutor to his sons. in this room, then a working laboratory, priestley pursued his investigations of gases. on 1 august 1774 he discovered oxygen.

explanation:

answer

i think the answer is a) as air pressure in an area increases, the density of the gas particles in that area decreases.

hope it

beta decay is the answer