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Pollution Causes MCQ App & e-Book Download - 1333

MCQ:

Risks of skin cancer is increased if

  1. more sun bathing is done
  2. the chlorofluorocarbons are lowered
  3. the greenhouse effect is lowered
  4. more ultraviolet light penetrates the Earth

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Pollution Causes Learning App: Free Download (Android & iOS)

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Pollution Causes App (Android & iOS)

Pollution Causes App (Android & iOS)

O Level Biology App (Android & iOS)

O Level Biology App (iOS & Android)

9th Grade Biology App (Android & iOS)

9th Grade Biology App (Android & iOS)

Zoology App (Android & iOS)

Zoology App (iOS & Android)