Question

hello what is nanotechnology ?

welcome back
(to myself)​

Answer 1

Answer:

the branch of technology that deals with dimensions and tolerances of less than 100 nanometres, especially the manipulation of individual atoms and molecules

Answer 2

$\red{are \: you \: angry \: to \: me}$

Answer:

the branch of technology that deals with making structures that are less than 100 nanometres long. Scientists often build these structures using individual molecules of substances