Which is the first Indian Company to be listed in NASDAQ?

• Reliance

• TCS

• HCL

• Infosys

Which of the following measures resources is renewable one?

• Uranium

• Coal

• Timber

• Natural Gas

The process of improving the quality of rubber by heating it with sulphur is called

• vulcanization

• acceleration

• sulphonation

• galvanization

One of the best solutions to get rid of non-biodegradable wastes is

• burning

• dumping

• burying

• recycling

The alkaloid naturally found in coffee, cocoa and cola nut is

• cocaine

• morphine

• tannin

• caffeine

The metal used for making aircrafts and rockets is

• lead

• aluminium

• nickel

• copper

Which of the following is not a noble gas?

• Hydrogen

• Helium

• Neon

• Argon

The colours of stars depend on their

• temperature

• distance

• radius

• atmospheric pressure

Optical fibre works on the principle of

• refraction

• scattering

• interference

• total internal reflection

Which source has been particularly fruitful in finding novel anti-tumour agents such as bryostatins and dolostatins?

• Marine sources

• Animals

• Venoms and toxins

• Combinatorial chemistry