14. an artifact is defined as: a a fossil b any object that was made or modified by humans c. anything found at an archacological site d any object that provides ecofacts

Option B.

Explanation:

Any object that was made or modified by humans, is the right answer.

An artifact is anything produced or given contour by humans, such as a weapon or an artwork, particularly an object of archaeological importance.

In the context of archaeology, however, the term has displayed a course of special distinction and is described as something obtained by archaeological effort, which can be a cultural artifact having an aesthetic concern.

question

which are human systems?

the amazon rain forest

the appalachian trail

the george washington bridge

the himalayas

the hoover dam

the north american free trade agreement