How did the Earth form? How did the ocean form? Include relevant terminology, dates, and processes
· The Big Bang Theory was an event in which the universe began expanding from a geometric point.
· The Big Bang happened approximately 13.7 billion years ago.
· Stars began condensing via accretion about 1 billion years ago.
· Accretion is a process that brings smaller particles together into larger masses.
· The Earth began to form as elements condensed from a cloud of dust and gas.
· Ocean formation begins when the Earth's surface is extremely hot. Water vapor began escaping to the surface through volcanic activity and outgassing. The vapor eventually cooled and condensed to form the ocean approximately 4 billion years ago.
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Modern humans have lived in Europe for at least 40,000 years
a. True b. False Indicate whether the statement is true or false
Through culture and technology, humankind has assumed responsibility for its own evolution
Indicate whether the statement is true or false.
A(n) ________ stream system is one in which multiple small channels are dispersed across a sand or gravel channel
Fill in the blank(s) with correct word
Which of the following organisms is not a marine mammal?
a) polar bears b) manatees c) penguins d) pinnipeds (seals and cousins) e) cetaceans (whales and dolphins)