Sedimentary rocks are formed by a natural process known as ___?

a) Lithification

b) Rejuvenation

c) Hydration

d) Peroxidation (more…)

“Airbnb” is an American ______ company.

a) Transportation

b) Tire manufacturing

c) Pharmaceutical

d) Home-rental  (more…)

Which countries are part of QUAD or Quadrilateral Security Dialogue (QSD)?

a) Russia, India, Japan, China

b) Japan, USA, India, Australia

c) Japan, UK, Australia, India

d) Australia, India, UK, China (more…)