Test Choose the right answer

1.Nanotechnology is __________ science.

a) agricultural

b) mathematical

c) technical

d) an applied

2. Nanoparticles are particles less than ______ nm in at least one dimension, classified as natural, anthropogenic or engineered in origin

a) 10

b) 100

c) 1000

d) 1

3. Therefore the _______nanoparticles and carbon nanotubes now have the widest range of applications.

a) silver

b) gold

c) bronze

d) aluminium

4. U.S. National Nanotechnology Initiative has described _______ generations of nanotechnology development

a) three

b) four

c) five

d) six

5. By embedding leaves with carbon nanotubes, MIT engineers have transformed ______ plants into sensors that can detect explosives and wirelessly relay

a) parsley

b) dill

c) onions

d) spinach

6. Scientists believe that plant power could also be harnessed to warn of pollutants and environmental conditions such as _____________.

a) flood

b) hot weather

c) drought

d) frosts

7. Plants are ideally suited for monitoring the ________because they already take in a lot of information from their surroundings.

a) weather

b) environment

c) conditions

d) people

8. The researchers use a ________, which looks like a giant washing machine festooned with aluminum foil, not only to capture images of atoms but to reposition individual atoms.

a) optical microscope

b) scanning tunneling microscope

c) stereoscopic microscope

d) binocular microscope

9. The I.B.M. effort heralded a new direction for nanotechnology and that it might offer a route to new kinds of _________.

a) nanoparticles

b) nanoscale

c) nanometer

d) nanomaterials

10. Antiferromagnetic materials are now instrumental in _________types of data storage products.

a) two

b) three

c) four

d) five

11. The semiconductor industry draws closer to exhausting the ability to scale down today’s ______using lithographic tools that etch patterns on the surface of silicon wafers.

a) circuits

b) coils

c) wafers

d) windings

12. Nanotechnology is toddling into commercialization, with ________being embedded in consumer products like sunscreens.

a) nanometers

b) nanomaterials

c) nanosciences

d) nanoscale particles

13. A number of companies are racing to scale up production of carbon nanotubes -- molecule-size ____ ---of carbon with unusual electrical, thermal and structural properties.

a) cylinders

b) circles

c) squares

d) materials

14. The inventors of the technology saw numerous potential benefits from such sterility, including a reduced risk that other genetically engineered characteristics in plants -- like _________-- could escape into weeds.

a) yield and productivity

b) fertility

c) resistance to herbicides

d) resistant to poisons

15. Because nanotechnology is gaining momentum from the convergence of advances in genetics, robotics and artificial intelligence, it has become an ________force.

a) unpredictable

b) dazzling

c) impeded

d) unstoppable

16. Nanotechnology's potential for being useful is_________.

a) phenomenal

b) usual

c) unpredictable

d) dazzling