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13 Aug 2020, 02:48
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Each species of tree in the Monongahela National Forest can survive in only one soil series.: Sufficient
Each species of tree in the Monongahela National Forest can survive at only one elevation.: Sufficient
The number of tree species located in valleys within the Monongahela National Forest is greater than the number located on ridges.: Not sufficient
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
75%
(hard)
Question Stats:
53% (01:59) correct
47%
(02:14)
wrong
based on 646
sessions
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The table below provides information on the local environmental conditions for 14 individual trees, representing 11 of the 75 tree species found in the Monongahela National Forest, West Virginia.
For each of the following statements, select Sufficient if the information in the table is enough to disprove the claim regarding the tree species. Otherwise, select Not sufficient.
| Tree Species | Elevation | Moisture | Topographic Roughness | Landform | Soil Series |
|---|---|---|---|---|---|
| American chestnut | moderate | low | high | ridge | Lily |
| American chestnut | high | low | high | ridge | Lily |
| Basswood | low | high | high | toe slope | Cateache |
| Chestnut oak | moderate | low | high | ridge | Lily |
| Hemlock | high | high | low | toe slope | Ernest |
| Pine | moderate | high | low | bench | Allegheny |
| Pine | moderate | high | low | bench | Allegheny |
| Red oak | high | low | high | bench | Cateache |
| Red spruce | high | moderate | low | toe slope | Mandy |
| Red spruce | low | high | low | valley | Allegheny |
| Spruce-pine | moderate | high | low | valley | Potomac |
| Sugar maple | high | moderate | high | ridge | Belmont |
| Sycamore | low | high | low | valley | Atkins |
| White oak | low | high | low | valley | Weikert |
For each of the following statements, select Sufficient if the information in the table is enough to disprove the claim regarding the tree species. Otherwise, select Not sufficient.
| Sufficient | Not sufficient | |
| Each species of tree in the Monongahela National Forest can survive in only one soil series. | ||
| Each species of tree in the Monongahela National Forest can survive at only one elevation. | ||
| The number of tree species located in valleys within the Monongahela National Forest is greater than the number located on ridges. |
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Official Answer
Each species of tree in the Monongahela National Forest can survive in only one soil series.: Sufficient
Each species of tree in the Monongahela National Forest can survive at only one elevation.: Sufficient
The number of tree species located in valleys within the Monongahela National Forest is greater than the number located on ridges.: Not sufficient
26 Nov 2024, 11:53
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Bunuel
Official Solution:
For this question, we need to determine if the information in the table is sufficient to disprove the statement.
Statement 1:
The table shows that Red spruce can grow in both Mandy and Allegheny soils, disproving the claim. Therefore, the information in the table is sufficient to disprove this statement.
Statement 2:
The table shows two species, American chestnut and Red spruce, growing at different elevations, disproving the claim. Therefore, the information in the table is sufficient to disprove this statement.
Statement 3:
The table provides data for only 11 species and does not include information on all 75 species in the forest, making it impossible to confirm or disprove the claim for the entire forest. Therefore, the information in the table is not sufficient to disprove this statement.
Correct answer:
Each species of tree in the Monongahela National Forest can survive in only one soil series. "Sufficient"
Each species of tree in the Monongahela National Forest can survive at only one elevation. "Sufficient"
The number of tree species located in valleys within the Monongahela National Forest is greater than the number located on ridges. "Not sufficient"
12 Dec 2024, 11:40
Kudos
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1. The question asks us to check whether the information is sufficient to disprove the following statements.
2. Each species of tree in the Monongahela National Forest can survive in only one soil series. The Red spruce, for example, can survive on Cateache and Allegheny soil series. So, the information is sufficient to disprove this statement.
3. Each species of tree in the Monongahela National Forest can survive at only one elevation. The American chestnut, for example, can survive at moderate and high elevations. So, the information is sufficient to disprove this statement.
4. The number of tree species located in valleys within the Monongahela National Forest is greater than the number located on ridges. 3 species (Sugar maple, Chestnut oak, and American chestnut) are located in ridges and 4 species (White oak, Sycamore, Spruce-pine, and Red spruce) are located in valleys. 4 > 3. So, the information is not sufficient to disprove this statement.
2. Each species of tree in the Monongahela National Forest can survive in only one soil series. The Red spruce, for example, can survive on Cateache and Allegheny soil series. So, the information is sufficient to disprove this statement.
3. Each species of tree in the Monongahela National Forest can survive at only one elevation. The American chestnut, for example, can survive at moderate and high elevations. So, the information is sufficient to disprove this statement.
4. The number of tree species located in valleys within the Monongahela National Forest is greater than the number located on ridges. 3 species (Sugar maple, Chestnut oak, and American chestnut) are located in ridges and 4 species (White oak, Sycamore, Spruce-pine, and Red spruce) are located in valleys. 4 > 3. So, the information is not sufficient to disprove this statement.
