Which sentences express the opinion of the author and which ones are facts?

• Группы
  • Opinion
  • Fact
• Варианты
  • Melting ice from the polar ice caps and mountain glaciers could be dangerous.
  • Heating up is all our fault.
  • According to recent climate reports, melting ice from the polar ice caps and mountain glaciers could cause sea levels to rise by about 1 metre by 2100.
  • When we burn fossil fuels, greenhouse gases increase, surround the earth like a thick blanket, trap heat and temperatures rise.
  • Scientists say that in the next 100 years, average temperatures will rise by about 3°C.