Cotton
Source: This question is taken from the Everyday Science
Desert
radio active gas
Grapes
ozone depletion
Breakbone Fever
1796
Spleen
Magnetosphere
Stratosphere
Eyes
Molecular Motion
optic disc
Degree of hardness of minerals
Bone Marrow
Thyroid gland
Second cranial nerve
Teflon
Abid Hussain
Earthquakes
Bone marrow