During …………………period, polished stone tools were made from a variety of hard rocks such as flint, jade, jadeite and greenstone.

Related MCQs

• Though the ………….. civilization had no metallurgy or wheel technology, they developed complex writing and astrological systems, and created sculptural works in stone and flint.
• The polished axes were used for forest clearance and the establishment of crop farming, and were effective as to remain in use when bronze and ………………..appeared.
• The later Stone Age, during which the rudiments of agricultural technology were developed, is called…………………...
• ……………..founded the Tabulating Machine Company in 1896 which later became the popular IBM (International Business Machines Corporation.A variety of machines were developed during the WWII.
• The importance of stone tools, circa 2.5 million years ago, is considered fundamental in ………….development in the hypothesis.
• ……………. engineers were also the first to devise automaton such as vending machines, suspended ink pots, automatic washstands and doors, primarily as toys, which however featured many new useful mechanisms such as the cam and gimbals.
• ………………., Blaise Pascal, and Gottfried Leibnitz were among mathematicians who designed and implemented calculators that were capable of addition, subtraction, multiplication, and division included.
• ………….. were used in the early machines of Pascal, Thomas, and the production versions from firms such as Brundsviga, Monroe, etc
• A computer ……………is a computer peripheral device that produces a hard copy (permanent human-readable text and/or graphics, usually on paper) from data stored in a computer connected to it.
• ………….concept of three major stages of social evolution (savagery, barbarism, and civilization) can be divided by technological milestones, such as fire, the bow, and pottery in the savage era, domestication of animals, agriculture, and metalworking in the barbarian era and the alphabet and writing in the civilization era.