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Earth Facts MCQ App & e-Book PDF Download - 645

MCQ:

Powerful magnetic field of Earth was due to its core of

  1. gold-nickel
  2. nickel-iron
  3. platinum-iron ore
  4. iron ore-gold

General Knowledge App & e-Book Tests PDF Download

Earth Facts Learning App: Free Download (Android & iOS)

The App: Earth Facts MCQ App to learn Earth Facts Textbook, General Knowledge MCQ App, and Biochemistry MCQ App. The "Earth Facts MCQ" App to free download iOS & Android Apps includes complete analytics with interactive assessments. Download App Store & Play Store learning Apps & enjoy 100% functionality with subscriptions!

Earth Facts App (Android & iOS)

Earth Facts App (Android & iOS)

General Knowledge App (Android & iOS)

General Knowledge App (iOS & Android)

Biochemistry App (Android & iOS)

Biochemistry App (Android & iOS)

Educational Psychology App (Android & iOS)

Educational Psychology App (iOS & Android)