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Mammals MCQs App Free Download & e-Book - 208

MCQ: 208

When sea mammals need to breath they come up to surface of water to breath because

  1. blowholes are located at head
  2. low oxygen in lower water
  3. water is hot downwards
  4. need fresh air

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Mammals Study App: Free Download iOS & Android

The App: Mammals MCQs App to study Mammals Notes, 6th Grade Science MCQs App, and 7th Grade Science MCQs App. The "Mammals" App to free download 6th Grade Science MCQs App (Android & iOS) includes complete analytics with interactive assessments. Download App Store & Play Store study Apps & enjoy 100% functionality with subscriptions!

Mammals App (Android & iOS)

Mammals App (Android & iOS)

6th Grade Science App (Android & iOS)

6th Grade Science App (iOS & Android)

7th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

Earth Science App (Android & iOS)

Earth Science App (iOS & Android)