Question detail
What is a carbon footprint?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Carbon dioxide and methane as greenhouse gases
Question
- A. The total amount of carbon dioxide emitted from a single event
- B. The total amount of carbon dioxide and other greenhouse gases emitted over the full lifecycle of a product
- C. The amount of carbon dioxide absorbed by trees
- D. The total emissions from a country's industry
Answer
The correct option is The total amount of carbon dioxide and other greenhouse gases emitted over the full lifecycle of a product. This answer is correct because it matches the approved learning objective to evaluate methods for reducing carbon footprints in terms of cost, practicality and effectiveness in the subtopic The carbon footprint and its reduction.
Explanation
The correct option is The total amount of carbon dioxide and other greenhouse gases emitted over the full lifecycle of a product. The total amount of carbon dioxide and other greenhouse gases emitted over the full lifecycle of a product is correct because it directly supports the approved learning objective to evaluate methods for reducing carbon footprints in terms of cost, practicality and effectiveness. This belongs to the subtopic The carbon footprint and its reduction within Carbon dioxide and methane as greenhouse gases, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from The carbon footprint and its reduction.
Common mistake
Misunderstanding Cost vs. Effectiveness
Students often confuse the cost of a method for reducing carbon footprints with its effectiveness, assuming that cheaper methods are always less effective.
To fix this, students should evaluate both the cost and the effectiveness of each method separately, considering how each method impacts carbon emissions and its overall feasibility.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.