Questions

The chemical name of common is sodium chloride. Its chemical formula is NaCl.

Kangaroo.

Most of the known extrasolar planets resembles the planet Jupiter in the solar system.

Secondary succession means in an ecosystem renewal of itself after all or a portion has been destroyed.

After a forest fire, the whole forest had destroyed but after that again renewal of that forest is also an example of secondary succession.

Joseph Priestley and Carl Wilhelm Scheele both independently discovered oxygen in the year 1774, but Priestly is usually given credit for the discovery.

The system unit of a personal computer typically contains microprocessor, disk controller and serial interface but it does not contain modem.

A postage stamp on the letters, parcels, ... for post will be on the corner of the post but it travels around the world to any address we want send that.