Muft Shiksha
Update

Muft Shiksha™ एक 100% Free Education Portal है 🇮🇳, जिसका उद्देश्य Class 9–12 के हर विद्यार्थी तक High-Quality Education को पूरी तरह मुफ्त पहुँचाना है। 🇮🇳 हम मानते हैं कि अच्छी शिक्षा किसी student की आर्थिक स्थिति पर निर्भर नहीं होनी चाहिए। 🇮🇳 हर विद्यार्थी को वही Quality Study Material, MCQs, Quizzes, Exam Preparation, Concept-Based Learning और Bilingual Support मिलना चाहिए, जो आमतौर पर महंगी Coaching या Premium Platforms में मिलता है। Muft Shiksha™ 🇮🇳 इसी सोच के साथ बनाया गया है

Subjects
Class 11GeographyInterior of the EarthInterior structure of the earthEasy
0 reads0 ratings0 helpful

Which elements are mainly considered in sima?

Answer and explanation

Correct answer: Silica and magnesium

Sima refers to the relatively heavier, basaltic part of the Earth’s crust. Its name is formed from silica (Si) and magnesium (Mg), so silica and magnesium is correct. Silica and aluminium are associated with sial, not sima. Exam tip: remember Sima as Si + Mg and Sial as Si + Al.

Related tags

Interior Of EarthSimaEarth CrustSilicaMagnesiumPhysical GeographyInterior Structure Of The EarthInterior Of The Earth
सुधार सुझाएँ / Earn

Was this question useful?

No ratings yetWrite a review / Rate this question

Student Reviews

No published reviews yet.

KEEP PRACTISING

10 more MCQs
  1. 1If increase in seismic wave velocity and gravity value occur together what cautious conclusion is suitable?
  2. 2If wave velocity changes at the Moho boundary which conclusion is most suitable?
  3. 3If wave behavior changes at the Lehmann boundary it will be related to what?
  4. 4Why is the geothermal gradient considered a concept different from surface weather?
  5. 5If crust sample has light minerals but Earth's mean density is high what conclusion is suitable?
  6. 6Magnetic field and absence of S waves together can give what type of core clue?
  7. 7If a sample is obtained only from the upper crust, for which region can the conclusion drawn from it be considered most reliable?
  8. 8If Lehmann boundary and Moho boundary are treated as same what is the error?
  9. 9With reference to Earth's interior and seismic waves, which of the following cause-and-effect relationships is correct?
  10. 10If pressure and temperature increase with depth, why is it difficult to predict the behavior of deep materials from samples obtained at the surface?
Found an issue? Help improve this questionMy reports and replies

Add Muft Shiksha to your Home Screen

In Safari, tap Share, then Add to Home Screen.