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

Geography

Sources of information

In Class 11 Geography, this topic introduces how scientists investigate the Earth’s interior, which cannot be observed directly. Students distinguish direct evidence from mines, deep drilling and volcanic materials, and indirect evidence from seismic waves, meteorites, gravity, magnetic fields, and variations in temperature and pressure. The topic explains how these sources help infer the Earth’s internal structure and composition within the chapter Interior of the Earth.

Hard · Level 2 · 25 questions

Practice questions

01Up to what limit should evidence from ocean floor rocks be applied?

0 reads0 helpful★ – (0)

Answer and explanation

02Why are geothermal gradient and radioactive decay studied together in internal heat study?

0 reads0 helpful★ – (0)

Answer and explanation

03If both velocity and path of P waves change at a seismic boundary which conclusion is better?

0 reads0 helpful★ – (0)

Answer and explanation

04Why are body waves more important than surface waves in internal study?

0 reads0 helpful★ – (0)

Answer and explanation

05Which statement best explains the scientific limitation of direct sources?

0 reads0 helpful★ – (0)

Answer and explanation

06Which clue helps most in knowing the state of internal materials?

0 reads0 helpful★ – (0)

Answer and explanation

07Why is combined analysis of seismic travel time and velocity done?

0 reads0 helpful★ – (0)

Answer and explanation

08On what basis does a rock sample become strong evidence of chemical composition of the crust?

0 reads0 helpful★ – (0)

Answer and explanation

09If a source gives clues of depth but no sample which term is most suitable in the answer?

0 reads0 helpful★ – (0)

Answer and explanation

10In which situation will magnetic field alone not be sufficient evidence?

0 reads0 helpful★ – (0)

Answer and explanation

11If seismic records show different times at different places what will scientists do?

0 reads0 helpful★ – (0)

Answer and explanation

12Which option shows the correct sequence of scientific study?

0 reads0 helpful★ – (0)

Answer and explanation

13If volcanic bombs ash and gases are given together in a question what is the correct classification?

0 reads0 helpful★ – (0)

Answer and explanation

14Which analysis best identifies boundaries of Earth's internal layers?

0 reads0 helpful★ – (0)

Answer and explanation

15Why are seismic evidences considered most important for deep parts of Earth?

0 reads0 helpful★ – (0)

Answer and explanation

16Which statement correctly states the limitation of using meteorites?

0 reads0 helpful★ – (0)

Answer and explanation

17If surface rocks are lighter but Earth's mean density is higher what clue is obtained about the core?

0 reads0 helpful★ – (0)

Answer and explanation

18In which situation will indirect evidence still be necessary even when direct samples are available?

0 reads0 helpful★ – (0)

Answer and explanation

19Which conclusion shows scientific thinking based on comparison of sources?

0 reads0 helpful★ – (0)

Answer and explanation

20Which option shows the correct cause and result relation?

0 reads0 helpful★ – (0)

Answer and explanation

21Which statement correctly uses seismograph and seismogram?

0 reads0 helpful★ – (0)

Answer and explanation

22Why is it risky to draw final conclusion about internal structure from a single source?

0 reads0 helpful★ – (0)

Answer and explanation

23Which is the most balanced approach for studying Earth's interior?

0 reads0 helpful★ – (0)

Answer and explanation

24If gravity anomaly and seismic velocity give different clues for a deep region how will scientists draw a conclusion?

0 reads0 helpful★ – (0)

Answer and explanation

25In which situation would applying a rock sample conclusion to the whole Earth's interior be scientifically wrong?

0 reads0 helpful★ – (0)

Answer and explanation

Add Muft Shiksha to your Home Screen

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