Clarify the Similarities & uDifferences between plough & tractor.

Plough is a local technology whereas Tractor is a modern technology.

Plough requires human energy whereas Tractor does not require much human energy.

Plough doesn't affect the environment whereas Tractor affects the environment.

Plough: A device pulled through the ground in order to break it open into furrows for planting.

The use of a plough; tillage.

Alternative form of Plough (Synonym of Ursa Major)

Alternative form of ploughland, an alternative name for a carucate or hide.

A joiner’s plane for making grooves.

A bookbinder’s implement for trimming or shaving off the edges of books.

Tractor: A vehicle used in farms e.g. for pulling farm equipment and preparing the fields.

(US) A truck (or lorry) for pulling a semi-trailer or trailer.

Any piece of machinery that pulls something.

(aviation) An aeroplane where the propeller is located in front of the fuselage

(Britain, rail transportation) A British Rail Class 37 locomotive.

(archaic) A metal rod used in fractionation, or Perkinism.

stewards ice box was the purchase of alaska from russia and it was called that because people thought it was not a good idea to purchase alaska