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Science Concepts and Evidence

Grade 12 · Building confidence · 8 questions · Version PG-9DBNXN-1SYL

1.

What is a carbon sink?A. The largest population an environment can sustain B. A measure of resource demand and waste impact C. Action that reduces causes or severity of environmental change D. A reservoir that absorbs more carbon than it releases

2.

What is mitigation?A. The variety of life at genetic, species, and ecosystem levels B. The largest population an environment can sustain C. To cross-check reconstructions of past conditions D. Action that reduces causes or severity of environmental change

3.

What is biodiversity?A. A reservoir that absorbs more carbon than it releases B. The largest population an environment can sustain C. Thermal expansion and melting land ice D. The variety of life at genetic, species, and ecosystem levels

4.

What is carrying capacity?A. The largest population an environment can sustain B. Fair treatment and participation in environmental decisions C. To cross-check reconstructions of past conditions D. The variety of life at genetic, species, and ecosystem levels

5.

Why use multiple climate proxies?A. The variety of life at genetic, species, and ecosystem levels B. A reservoir that absorbs more carbon than it releases C. To cross-check reconstructions of past conditions D. Action that reduces causes or severity of environmental change

6.

What is environmental justice?A. The variety of life at genetic, species, and ecosystem levels B. The largest population an environment can sustain C. Action that reduces causes or severity of environmental change D. Fair treatment and participation in environmental decisions

7.

What drives sea-level rise?A. Action that reduces causes or severity of environmental change B. A measure of resource demand and waste impact C. Thermal expansion and melting land ice D. Fair treatment and participation in environmental decisions

8.

What is an ecological footprint?A. A measure of resource demand and waste impact B. The largest population an environment can sustain C. To cross-check reconstructions of past conditions D. A reservoir that absorbs more carbon than it releases

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 6
  1. What is a carbon sink?A reservoir that absorbs more carbon than it releases
  2. What is mitigation?Action that reduces causes or severity of environmental change
  3. What is biodiversity?The variety of life at genetic, species, and ecosystem levels
  4. What is carrying capacity?The largest population an environment can sustain
  5. Why use multiple climate proxies?To cross-check reconstructions of past conditions
  6. What is environmental justice?Fair treatment and participation in environmental decisions
  7. What drives sea-level rise?Thermal expansion and melting land ice
  8. What is an ecological footprint?A measure of resource demand and waste impact

Worked example

Read the direction, identify the assessed skill, solve or cite evidence, and check the response.

Common mistake

Using a memorized procedure without checking what the question asks.

Helpful hint

Name the standard skill before answering.