 |
| 1 | |
The Big Bang occurred |
| | A) | 10 to 15 billion years ago |
| | B) | 3.8 billion years ago |
| | C) | 4.5 billion years ago |
| | D) | 450 million years ago |
|
|
|
| 2 | |
The Earth and the rest of our solar system formed |
| | A) | 10 to 15 billion years ago |
| | B) | 3.8 billion years ago |
| | C) | 4.5 billion years ago |
| | D) | 450 million years |
|
|
|
| 3 | |
The two most abundant elements in the crust are |
| | A) | magnesium and potassium |
| | B) | iron and aluminum |
| | C) | sodium and calcium |
| | D) | oxygen and silicon |
|
|
|
| 4 | |
Earth’s internal layers, in order from outermost to innermost, are |
| | A) | core, mantle, crust |
| | B) | crust, core, mantle |
| | C) | mantle, crust, core |
| | D) | crust, mantle, core |
|
|
|
| 5 | |
Earth’s core is rich in |
| | A) | ferromagnesian silicates |
| | B) | iron |
| | C) | aluminosilicates |
| | D) | potassium-rich silicates |
|
|
|
| 6 | |
Which layer within the earth is molten (liquid)? |
| | A) | oceanic crust |
| | B) | outer core |
| | C) | inner core |
| | D) | mantle |
|
|
|
| 7 | |
Humans (Homo sapiens) first appeared |
| | A) | 50 million years ago |
| | B) | 5 million years ago |
| | C) | 500 thousand years ago |
| | D) | 50 thousand years ago |
|
|
|
| 8 | |
Which is a rocky planet? |
| | A) | Jupiter |
| | B) | Saturn |
| | C) | Venus |
| | D) | Uranus |
|
|
|
| 9 | |
Which is a gaseous planet? |
| | A) | Jupiter |
| | B) | Mercury |
| | C) | Venus |
| | D) | Mars |
|
|
|
| 10 | |
Which planet’s size and density are most similar to Earth’s? |
| | A) | Mars |
| | B) | Mercury |
| | C) | Venus |
| | D) | Neptune |
|
|
|
| 11 | |
Dinosaur fossils can only be found in rocks of what age? |
| | A) | Proterozoic |
| | B) | Mesozoic |
| | C) | Paleozoic |
| | D) | Cenozoic |
|
|
|
| 12 | |
Mammal fossils dominate rocks of what age? |
| | A) | Proterozoic |
| | B) | Mesozoic |
| | C) | Paleozoic |
| | D) | Cenozoic |
|
|
|
| 13 | |
Fossils of the first plants and animals living on land are found in rocks of what age? |
| | A) | Proterozoic |
| | B) | Mesozoic |
| | C) | Paleozoic |
| | D) | Cenozoic |
|
|
|
| 14 | |
The oldest rocks on Earth are what age? |
| | A) | Archean |
| | B) | Proterozoic |
| | C) | Paleozoic |
| | D) | Mesozoic |
|
|
|
| 15 | |
An hypothesis |
| | A) | is a tentative explanation for a set of data or observations |
| | B) | is falsifiable |
| | C) | can become a theory after being tested many times |
| | D) | all of the above |
|
|
|
| 16 | |
Which geologic hazard causes the greatest amount of structural damage? |
| | A) | landslides |
| | B) | floods |
| | C) | earthquakes |
| | D) | unstable soils |
|
|
|
| 17 | |
Using the equation D = 70/G, what is the doubling time for a population growing at a rate of 1.6% per year? |
| | A) | 112 years |
| | B) | 44 years |
| | C) | 4 years |
| | D) | 11 years |
|
|
|
| 18 | |
World population is currently |
| | A) | 4 billion |
| | B) | 5 billion |
| | C) | 6 billion |
| | D) | 7 billion |
|
|
|
| 19 | |
Humans have caused |
| | A) | the amount of water in the global ocean to decrease |
| | B) | the amount of carbon dioxide in the atmosphere to increase |
| | C) | the amount of oxygen in the atmosphere to increase |
| | D) | all of the above |
|
|
|
| 20 | |
Which continent has the fastest rate of population growth? |
| | A) | North America |
| | B) | Asia |
| | C) | Europe |
| | D) | Africa |
|
|
.