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Environmental Issues. — BIO BOTANY STD 12 — Question

Tamilnadu BoardEnglish MediumSTD 12BIO BOTANYEnvironmental Issues.1 Mark
MCQ
Methane is __________ times as effective as $CO _2$ at trapping heat.
  • A
    5
  • B
    10
  • ✓
    20
  • D
    100
✓

Answer

Correct option: C.
20
20

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