Geology: Our Dynamic Earth Introduction

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Most scientists argue that the greatest environmental problem facing the world today is
overpopulation
1 of 5
The Big Bang took place approximately _______ years ago
15 billion
2 of 5
The age of the universe is estimated by:
the rate at which galaxies are moving away from one another
3 of 5
At the moment of the Big Bang there was no ________, there was only ________.
matter, energy
4 of 5
The terrestrial planets are
Mercury, Venus, Earth and Mars
5 of 5

Other cards in this set

Card 2

Front

The Big Bang took place approximately _______ years ago

Back

15 billion

Card 3

Front

The age of the universe is estimated by:

Back

Preview of the front of card 3

Card 4

Front

At the moment of the Big Bang there was no ________, there was only ________.

Back

Preview of the front of card 4

Card 5

Front

The terrestrial planets are

Back

Preview of the front of card 5

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