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Shortcut used: Read the correct row and column first; then compare or calculate only the requested values.
Solve in 3 steps:
- Mark the given values and the exact target.
- Apply the relevant formula, rule, or concept.
- Check the final value against the options.
Common mistake: Do not choose an option before confirming the exact demand of the question.
Question 7
Multiple Choice Question
Question
Experiment 2 measured dissolved oxygen in freshwater.
Water temperature (°C) | Dissolved oxygen (mg/L)
10 | 11.3
20 | 9.1
30 | 7.4
40 | 6.2
How much did dissolved oxygen decrease from 10°C to 40°C?
Explanation
Correct Answer: C
ANSWER
Correct Answer: C
Method / Topic: Data Interpretation
The decrease is 11.3 - 6.2 = 5.1 mg/L.
Why this answer is correct
The correct option matches the required rule and the given information.
Short Explanation
The decrease is 11.3 - 6.2 = 5.1 mg/L.
Detailed Explanation
Question
Experiment 2 measured dissolved oxygen in freshwater.
Water temperature (°C) | Dissolved oxygen (mg/L)
10 | 11.3
20 | 9.1
30 | 7.4
40 | 6.2
How much did dissolved oxygen decrease from 10°C to 40°C?
ANSWER
Correct Answer: C
Method / Topic: Data Interpretation
The decrease is 11.3 - 6.2 = 5.1 mg/L.
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Question 7
Learn + Solve: Shortcut, Trap & Fast Route Click to view shortcut, steps, and common mistake
Learn + solve
Shortcut used, common trap, and the fastest solving route
Shortcut used: Read the correct row and column first; then compare or calculate only the requested values.
Solve in 3 steps:
- Mark the given values and the exact target.
- Apply the relevant formula, rule, or concept.
- Check the final value against the options.
Common mistake: Do not choose an option before confirming the exact demand of the question.
Question
Experiment 2 measured dissolved oxygen in freshwater. Water temperature (°C) | Dissolved oxygen (mg/L) 10 | 11.3 20 | 9.1 30 | 7.4 40 | 6.2 How much did dissolved oxygen decrease from 10°C to 40°C?
Explanation
Correct Answer: C
ANSWER
Correct Answer: C
Method / Topic: Data Interpretation
The decrease is 11.3 - 6.2 = 5.1 mg/L.
Why this answer is correct
The correct option matches the required rule and the given information.
Short Explanation
The decrease is 11.3 - 6.2 = 5.1 mg/L.
Detailed Explanation
Question
Experiment 2 measured dissolved oxygen in freshwater.
Water temperature (°C) | Dissolved oxygen (mg/L)
10 | 11.3
20 | 9.1
30 | 7.4
40 | 6.2
How much did dissolved oxygen decrease from 10°C to 40°C?
ANSWER
Correct Answer: C
Method / Topic: Data Interpretation
The decrease is 11.3 - 6.2 = 5.1 mg/L.
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