Chemistry Cluster #1
Passage
•
Science
•
9th - 12th Grade
•
Practice Problem
•
Hard
Theodor Fuqua
Used 2+ times
FREE Resource
5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Please refer to Passage 1 to answer the following question:
Which claim about the kelp carbon pool is best supported by evidence from the information and the model above?
The carbon storage is higher with the otters present because the sea otters eat the sea urchins.
The carbon storage is higher with the sea urchins present because they control the kelp population.
The carbon storage is lower with the otters present because the sea otters eat the kelp.
The carbon storage is lower with the sea urchins present because they carry out autotrophic nutrition.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Please refer to Passage 1 to answer the following question:
Which statement uses the model to describe how kelp contributes to a reduction of carbon entering the atmosphere?
Kelp produces carbon as it grows within the hydrosphere.
Some of the carbon stored in the dead kelp is trapped in the geosphere of the sea
floor.
Kelp produces carbon as it sinks into the hydrosphere.
Some of the carbon stored in kelp is added to the geosphere through cell respiration.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Please refer to Passage 1 to answer the following question:
Which model identifies the process that converts light energy into chemical energy inside the
kelp?
4.
OPEN ENDED QUESTION
3 mins • 1 pt
Please refer to Passage 2 to answer the following question:
If the trend in atmospheric CO2 levels continues, sea urchin populations may be impacted.
Describe evidence from the graph that supports this claim.
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Please refer to Passage 3 to answer the following question:
As atmospheric CO₂ levels increase, more CO₂ dissolves in ocean water and forms carbonic acid (H₂CO₃).
Explain how this process affects the availability of carbonate ions (CO₃²⁻) in seawater and describe the resulting impact on the ability of sea urchins to form calcium carbonate (CaCO₃) shells.
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