Question

Which is an important characteristic of the Quaternary Period?
The major changes in the tools used by humans.
The migration of animals from one region to another.
The major changes in the environment.
The rise in the level of sea water.

Answer 1

The Quaternary Period is a geologic time period that encompasses the most recent 2.6 million years — including the present day. Part of the Cenozoic Era, the period is usually divided into two epochs — the Pleistocene Epoch, which lasted from approximately 2 million years ago to about 12,000 years ago, and the Holocene Epoch, which began about 12,000 years ago.

The Quaternary Period has involved dramatic climate changes, which affected food resources and brought about the extinction of many species. The period also saw the rise of a new predator: man

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