The new technology used in world war 1 contributed to the war how

Combat strategy

Explanation:

The new technology used in the war were industrial and military. The use of chemical warfare, rifled weapons, machine guns, and the rapid-fire field artillery gun contributed to grown the elements for the bloody combat, but also important for the strategy of victory were the submarines, the armored vehicles, and modern communications. In this way the attacks prolonged.

in 1803 the louisiana purchase took place, doubling the size of the country. by 1840 almost 7 million americans had migrated westward in hopes of securing land and being prosperous. the belief that settlers were destined to expand to the west is often referred to as manifest destiny.

explanation:

donald carl johanson (born june 28, 1943) is an american paleoanthropologist. he is known for discovering – with yves coppens and maurice taieb – the fossil of a female hominin australopithecine known as "lucy" in the afar triangle region of hadar, ethiopia.

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i googled "who was kolson johanson" and this is the answer i found.

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