Question

Pleaseeee answer the 3rd part guys

Answer 1

Answer:

Nanotechnology is the term given to those areas of science and engineering where phenomena that take place at dimensions in the nanometre scale are utilised in the design, characterisation, production and application of materials, structures, devices and systems.

Answer 2

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Ethnic groups. The largest Dravidian ethnic groups are the Telugus from Andhra Pradesh and Telangana, the Tamils from Tamil Nadu, Sri Lanka, Malaysia and Singapore, the Kannadigas from Karnataka, the Malayalis from Kerala, and the Tulu people from Karnataka.