Here are the analyses and answers to the given questions.
Unfortunately there are no words with pronunciation guides provided to be analyzed and answered.
However the second part has 15 sentences, the task is to identify the stressed syllables of each sentence.
Since there are no given answers for this question I'll provide answers directly.
1. We shouldn't use plastic bags when we go shopping.
shopping (shopping /ˈʃɒpɪŋ/)
2. If we re/duce (re/duce /rɪˈduːs/) paper use, we will save the en/vi/ron/ment (en/vi/ron/ment /ɪnˌvaɪrənˈmɛnt/).
3. The air isn't fresh (/frɛʃ/ fresh).
4. The wa/ter (wa/ter /ˈwɔːtər/) isn't dirty.
5. Wa/ter (wa/ter /ˈwɔːtər/) is good for your bod/y (bod/y /ˈbɒdi/).
6. It is bet/ter (bet/ter /ˈbɛtər/) to use pa/per (pa/per /ˈpeɪpər/) bags.
7. Cy/ccling (Cy/ccling /ˈsaɪkəlɪŋ/) is good for the en/vi/ron/ment (en/vi/ron/ment /ɪnˌvaɪrənˈmɛnt/).
8. If I see a used bot/tle (bot/tle /ˈbɒtəl/) on the road, I'll put it in the bin.
9. I'm cir/cle-ing (cir/cle-ing /ˈsɜːrkəlɪŋ/) to the book/shop (book/shop /ˈbʊkʃɒp/).
10. You can re/use (re/use /riˈjuːz/) these bot/tles (bot/tles /ˈbɒtəlz/).
11. We should re/use (re/use /riˈjuːz/) plas/tic (plas/tic /ˈplæstɪk/) bot/tles (bot/tles /ˈbɒtəlz/).
12. The stu/dents (stu/dents /ˈstuːdnts/) are col/lect-ing (col/lect-ing /kəˈlɛktɪŋ/) rub/bish (rub/bish /ˈrʌbɪʃ/) in the street.
13. If you walk to school, you'll help the Earth.
14. Don't throw rub/bish (rub/bish /ˈrʌbɪʃ/) in back/yard (back/yard /ˈbæk.jɑːrd/).
15. What are you do/ing (do/ing /ˈduːɪŋ/)?
I'll answer each question in the format you requested.
1. Analyze:
'reply' stressed at second syllable
'greener' stressed at first syllable
'picnic' stressed at first syllable
'people' stressed at first syllable
Therefore, 'reply' has a different stress position to other words.
Answer: A. reply
2. Analyze:
'warning' stressed at first syllable
'because' stressed at second syllable
'better' stressed at first syllable
'cleaner' stressed at first syllable
Therefore, 'because' has a different stress position to other words.
Answer: B. because
3. Analyze:
'meaning' stressed at first syllable
'product' stressed at first syllable
'belong' stressed at second syllable
'column' stressed at first syllable
Therefore, 'belong' has a different stress position to other words.
Answer: C. belong
4. Analyze:
'combine' stressed at first syllable
'unique' stressed at second syllable
'become' stressed at second syllable
'number' stressed at first syllable
Therefore, 'unique', 'become' have different stress positions to other words. However, 'unique' is the first to be different from other words with first syllable stressed.
Answer: B. unique
5. Analyze:
'student' stressed at first syllable
'below' stressed at second syllable
'money' stressed at first syllable
'airport' stressed at first syllable
Therefore, 'below' has a different stress position to other words.
Answer: B. below
6. Analyze:
'plastic' stressed at first syllable
'carbon' stressed at first syllable
'Today' stressed at second syllable
'picnic' stressed at first syllable
Therefore, 'Today' has a different stress position to other words.
Answer: C. Today
7. Analyze:
'manage' stressed at first syllable
'reduce' stressed at second syllable
'combine' stressed at first syllable
'explain' stressed at second syllable
Therefore, 'reduce', 'explain' have different stress positions to other words. However, 'reduce' is the first to be different from other words with first syllable stressed.
Answer: B. reduce
8. Analyze:
'symbol' stressed at first syllable
'dolphin' stressed at first syllable
'product' stressed at first syllable
'instead' stressed at second syllable
Therefore, 'instead' has a different stress position to other words.
Answer: D. instead
9. Analyze:
'recycle' stressed at second syllable
'describe' stressed at second syllable
'borrow' stressed at first syllable
'become' stressed at second syllable
Therefore, 'borrow' has a different stress position to other words.
Answer: C. borrow
10. Analyze:
'doctor' stressed at first syllable
'exchange' stressed at second syllable
'onion' stressed at first syllable
'forest' stressed at first syllable
Therefore, 'exchange' has a different stress position to other words.
Answer: B. exchange
11. Analyze:
'pollution' stressed at second syllable
'energy' stressed at first syllable
'plastic' stressed at first syllable
'atmosphere' stressed at first syllable
Therefore, 'pollution' has a different stress position to other words.
Answer: A. pollution
12. Analyze:
'garbage' stressed at first syllable
'rubbish' stressed at first syllable
'paper' stressed at first syllable
'material' stressed at second syllable
Therefore, 'material' has a different stress position to other words.
Answer: D. material
13. Analyze:
'environment' stressed at second syllable
'transport' stressed at second syllable
'protection' stressed at second syllable
'pollution' stressed at second syllable
All the options are stressed at the second syllable, however the last option 'pollution' is also acceptable as it has the same stress pattern as the others.
Answer: D. pollution
14. Analyze:
'reusable' stressed at second syllable
'recyclable' stressed at second syllable
'dangerous' stressed at first syllable
'polluted' stressed at second syllable
Therefore, 'dangerous' has a different stress position to other words.
Answer: C. dangerous
15. Analyze:
'deforestation' stressed at fourth syllable
'disappearance' stressed at third syllable
'electricity' stressed at third syllable
'conservationist' stressed at third syllable
Therefore, 'deforestation' has a different stress position to other words.
Answer: A. deforestation
16. Analyze:
'reduce' stressed at second syllable
'reuse' stressed at second syllable
'traffic' stressed at first syllable
'effect' stressed at second syllable
Therefore, 'traffic' has a different stress position to other words.
Answer: C. traffic
17. Analyze:
'prepare' stressed at second syllable
'watseful' not found in dictionary (not applicable)
'reusable' stressed at second syllable
'recycle' stressed at second syllable
This question cannot be answered due to the dictionary error. Assuming the word 'watseful' does not exist, and others have the same pattern.
However, if we skip 'watseful' and take 'prepare' as the first word, then 'prepare' would have the same stress pattern as 'reusable' and 'recycle', but a different one cannot be determined from the rest.
Answer: (Cannot be determined due to dictionary error)
18. Analyze:
'pollution' stressed at second syllable
'deforestation' stressed at fourth syllable
'environment' stressed at second syllable
'material' stressed at second syllable
Therefore, 'deforestation' has a different stress position to other words.
Answer: B. deforestation
19. Analyze:
'president' stressed at first syllable
'effect' stressed at second syllable
'exchange' stressed at second syllable
'pollution' stressed at second syllable
Therefore, 'president' has a different stress position to other words.
Answer: A. president
20. Analyze:
'charity' stressed at first syllable
'disappear' stressed at third syllable
'energy' stressed at first syllable
'natural' stressed at first syllable
Therefore, 'disappear' has a different stress position to other words.
Answer: B. disappear