Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
Identify the false statement. Internal differentiation: |
"stirred" Earth's interior and thus hastened Earth's cooling |
|
|
Identify the false statement. There is very little rock record for Earth's first 600 million years because: |
the surface then was one huge ocean basin filled with hot water and nothing else |
|
|
The Great Oxygenation Event, which added abundant oxygen to the atmosphere beginning about 2.5 Ga, was due to the: |
Evolution of photosynthetic organisms in oceans |
|
|
Theoretically, "snowball Earth" conditions of the late Proterozoic Eon would have persisted forever were it not for greenhouse warming caused by volcanically derived: |
carbon dioxide |
|
|
the paleozoic era ended with the largest known mass extinction event. Which of the following is hypothesized to be the cause of that extinction? |
intense volcanic activity in Siberia |
|
|
The late-Devonian fossil shown in this image, Tiktaalik, is significant because it represents: |
a transition from fish to amphibians that could walk on land and breathe air |
|
|
when north america collided with northwestern africa during the alleghanian orogeny, a broad region of warped, faulted rocks formed - remnants of which still underlie the valley and ridge province of the appalachian mountains. This broad region of deformed rocks is called: |
a fold-thrust belt |
|
|
which of the following statements is false? |
human ancestors first appeared in the late Mesozoic |
|
|
which of the following climate conditions would most likely allow glaciers to form? |
a heavy snowfall in winter coupled with relatively cool summers |
|
|
Choose the false statement |
when the rate of ablation equals the rate of accumulation, the glacier retreats |
