Delta Test 2 Listening 1 Q 6-11

Quiz Summary

0 of 6 questions completed

Questions:

You have already completed the quiz before. Hence you can not start it again.

Quiz is loading…

You must sign in or sign up to start the quiz.

You must first complete the following:

Results

Quiz complete. Results are being recorded.

Results

You have reached 0 of 0 point(s), (0)

Current
Review / Skip
Correct
Incorrect

Question 1 of 6

1. Question
6. What is the main purpose of the lecture?
- A. To describe the process of photosynthesis
- B. To explain how the carbon cycle works
- C. To link carbon and global warming
- D. To compare carbon dioxide and energy
Correct

Incorrect
Question 2 of 6

2. Question
7. What point does the professor make about the cycling of carbon dioxide in the atmosphere?
- A. It is disrupted when animals eat the leaves of trees.
- B. It provides a link between Earth’s atmosphere and outer space.
- C. It occurs globally through the respiration of plants and animals.
- D. It is a subject of disagreement among scientists.
Correct

Incorrect
Question 3 of 6

3. Question
8. Listen again to part of the lecture. Then answer the question.
Why does the professor say this:
- A. To show that environmental conditions have changed over time
- B. To explain how carbon can be removed from the cycle for long periods
- C. To point out that coal and petroleum are the oldest organic substances
- D. To compare the carbon content of coal with that of petroleum
Correct

Incorrect
Question 4 of 6

4. Question
9. According to the professor, what factors affect the amount of carbon dioxide in the atmosphere? Click on 2 answers.
- A. The season of year
- B. The species of vegetation
- C. The burning of fossil fuels
- D. The amount of precipitation
Correct

Incorrect
Question 5 of 6

5. Question
10. According to the professor, why is the level of atmospheric carbon dioxide lowest during the summer?
- A. Carbon separates from oxygen in warm temperatures.
- B. Respiration by animals exceeds respiration by plants.
- C. Plant–eating animals eat less during the summer.
- D. Plants use more carbon dioxide for photosynthesis.
Correct

Incorrect
Question 6 of 6

6. Question
11. What does the professor mean when she says this:
- A. There is disagreement over the effects of changes to the carbon cycle.
- B. Tomorrow the class will participate in a scientific debate.
- C. The increase in carbon dioxide is the most serious scientific issue.
- D. The disadvantages of burning fossil fuels exceed the advantages.
Correct

Incorrect

Quiz Summary

Information

Results

Results

Categories

1. Question

2. Question

3. Question

4. Question

5. Question

6. Question