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1. How does a texture of a rock surface affect how fast it can be physically weathered by water?
a. Reduce fossil fuel use
c. There are few fossils from that time.
b. Rocks with cracks and fractures are more susceptible to frost wedging, salt wedging, and biological weathering.
a. Oxygen giving up electrons to other elements.
c. Bits being blown off a rock by heavy winds.
b. Fossil record
Cyanobacteria became the chloroplast of plants.
d. It will become deeper, as the Colorado River continues to carve into the rock.
13. What is an example of a physical weathering?
a. Reduce fossil fuel use
c. There are few fossils from that time.
b. Rocks with cracks and fractures are more susceptible to frost wedging, salt wedging, and biological weathering.
a. Oxygen giving up electrons to other elements.
c. Bits being blown off a rock by heavy winds.
b. Fossil record
Cyanobacteria became the chloroplast of plants.
d. It will become deeper, as the Colorado River continues to carve into the rock.
14. Which process is an important part of chemical weathering through oxidation?
a. Reduce fossil fuel use
c. There are few fossils from that time.
b. Rocks with cracks and fractures are more susceptible to frost wedging, salt wedging, and biological weathering.
a. Oxygen giving up electrons to other elements.
c. Bits being blown off a rock by heavy winds.
b. Fossil record
Cyanobacteria became the chloroplast of plants.
d. It will become deeper, as the Colorado River continues to carve into the rock.
4. What provides evidence of an increase in animal species at the same time that atmospheric oxygen concentrations increased?
a. Reduce fossil fuel use
c. There are few fossils from that time.
b. Rocks with cracks and fractures are more susceptible to frost wedging, salt wedging, and biological weathering.
a. Oxygen giving up electrons to other elements.
c. Bits being blown off a rock by heavy winds.
b. Fossil record
Cyanobacteria became the chloroplast of plants.
d. It will become deeper, as the Colorado River continues to carve into the rock.
Which of the following events happened SECOND in the development of Plants
a. Reduce fossil fuel use
c. There are few fossils from that time.
b. Rocks with cracks and fractures are more susceptible to frost wedging, salt wedging, and biological weathering.
a. Oxygen giving up electrons to other elements.
c. Bits being blown off a rock by heavy winds.
b. Fossil record
Cyanobacteria became the chloroplast of plants.
d. It will become deeper, as the Colorado River continues to carve into the rock.
8. Which describes the Grand Canyon as it will be one million years from today?
a. Reduce fossil fuel use
c. There are few fossils from that time.
b. Rocks with cracks and fractures are more susceptible to frost wedging, salt wedging, and biological weathering.
a. Oxygen giving up electrons to other elements.
c. Bits being blown off a rock by heavy winds.
b. Fossil record
Cyanobacteria became the chloroplast of plants.
d. It will become deeper, as the Colorado River continues to carve into the rock.
2. Why do scientists know very little about life in the Precambrian eon?
a. Reduce fossil fuel use
c. There are few fossils from that time.
b. Rocks with cracks and fractures are more susceptible to frost wedging, salt wedging, and biological weathering.
a. Oxygen giving up electrons to other elements.
c. Bits being blown off a rock by heavy winds.
b. Fossil record
Cyanobacteria became the chloroplast of plants.
d. It will become deeper, as the Colorado River continues to carve into the rock.
6. Which of the following are ways that humans can help protect coral reefs and prevent erosions to coastlines?
a. Reduce fossil fuel use
c. There are few fossils from that time.
b. Rocks with cracks and fractures are more susceptible to frost wedging, salt wedging, and biological weathering.
a. Oxygen giving up electrons to other elements.
c. Bits being blown off a rock by heavy winds.
b. Fossil record
Cyanobacteria became the chloroplast of plants.
d. It will become deeper, as the Colorado River continues to carve into the rock.
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Match it!
Match it!