Questions

International day of sign language is celebrated annually across the world on 23rd september along with International Week of the Deaf.

The social security is a welfare plan and an insurance company that regulates the benefits for survivors of deceased workers, disabled workers, retirees and death as well as survivorship benefits.

Luis Suarez

Nicolaus Copernicus was decribed by his work on "The Heliocentric Theory" which is based on that the earth revolves around the Sun.

This theory was developed in parts by different astronomers over many years, namely Aristarchus, Copernicus, Kepler, and Galileo.

To organize ads by common themes that you want to advertise on.

There   are five known   states   of matter:    solids,    liquids,    gases, plasma and Bose-Einstein condensates.  The  main  difference in the structures of each state is in the densities of the particles.