TopRq.com

Nature, in the broadest sense, is equivalent to the natural world, physical world, or material world. "Nature" refers to the phenomena of the physical world, and also to life in general. It ranges in scale from the subatomic to the cosmic. The word nature is derived from the Latin word natura, or "essential qualities, innate disposition", and in ancient times, literally meant "birth"...

In military parlance, a gun is a muzzle or breech-loaded projectile-firing weapon. There are various definitions depending on the nation and branch of service. A "gun" may be distinguished from other firearms in being a crew served weapon such as a howitzer or mortar, as opposed to a small arm like a rifle or pistol, but there are exceptions, such as the USAF's GUU5/P. At one time, land based artillery tubes were called cannon and sea-based naval cannon were called guns...

A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees (also known as dikes) are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are often used in conjunction with dams to generate electricity. A dam can also be used to collect water or for storage of water which can be evenly distributed between locations...

...

...

Balochistan or Baluchistan (Balochi: بلوچستان, lit. Land of the Baloch) is an arid desert and mountainous region on the Iranian plateau in south-western Asia, northwest of the Arabian Sea. It stretches across southwestern Pakistan, southeastern Iran, and a small section of southwestern Afghanistan. The southern part of Balochistan is known by its historical name Makran. Balochistan is named after the native Baloch tribes who inhabit the region and use Balochi as their native language...