he discovered oxygen
Joseph Black did discover carbon dioxide.
Oxygen
Joseph priestly
Joseph Priestly discovered "oxygen" in 1744. He called it "dephlogisticated air."
The dinitrogen monoxide (N2O) was discovered by Joseph Priestley in 1772.
200
He discovered it 1897.
Feather
Joseph Sharkey
He was a botanist so he discovered plants.
i dont know the answer i want the answer myself
Joseph Fourier