Q.Define the following terms:
a. Nanoscience
b. Nanotechnology
c. Nanomaterial
d. Nanochemistry

Nanoscience is the study of phenomena and manipulation of materials at atomic, molecular and macromolecular scales, where properties differ significantly from those at a larger scale -- a size regime where a material's ordinary bulk properties genuinely change, purely as a function of particle size, without any change in chemical identity. Nanotechnology is the applied, engineering side of the same subject: the design, characterisation, production …