Monday 6 March 2017

Everyday Science Questions

1. The crust of the Earth is dynamic. Geologists have found that the crust is made up of moveable tectonic plates. How many tectonic plates make the Earth's crust?

  • (A) 2
  • (B) 4
  • (C) 10
  • (D) 20

2. Earthquakes are those movements of the Earth's crust which make it vibrate and shake the ground backward and forwards. Most of the earthquakes occur where the tectonic plates meet. By which scale is the severity of an earthquake measured?

  • (A) Index scale
  • (B) Fischer scale
  • (C) Richer scale
  • (D) Absolute scale

3. When an earthquake is accompanied by a volcanic eruption it is called as?

  • (A) Tectonic earthquake
  • (B) Volcanic earthquake
  • (C) Plutonic earthquake
  • (D) Fracture earthquake

4. Whenever an earthquake occurs, waves start to travel in all directions from the source of the disturbance. Name the instrument which detects these disturbances.

  • (A) Spectrograph
  • (B) Holograph
  • (C) Seismograph
  • (D) Cardiograph

5. A person who is an expert in dealing with the earthquake is called?

  • (A) Analyst
  • (B) Seismologist
  • (C) Agronomist
  • (D) Chemist

6. The place within the Earth where the disturbance begins, is known as the focus and from this focus start waves that move the rocks of the crust. The place immediately above the focus on the surface of the Earth is known as?

  • (A) Epicentre
  • (B) Autocentre
  • (C) Gravity centre
  • (D) Local centre

7. The waves that originate from the focus radiate in all directions in concentric circles and according to their mode of traveling and rate of movement, these are given specific names. Which of the following is not a type of earthquake waves?

  • (A) Longitudinal waves
  • (B) Transverse waves
  • (C) Surface waves
  • (D) Electromagnetic waves

8. Which one of the following tectonic plates does not have any continent?

  • (A) American plate
  • (B) African plate
  • (C) Pacific plate
  • (D) Eurasian plate

9. On which tectonic plate is Pakistan situated?

  • (A) Pacific plate
  • (B) Indo-Australian plate
  • (C) American plate
  • (D) Eurasian plate

10. On which tectonic plate is rocky mountains situated?

  • (A) African plate
  • (B) Pacific plate
  • (C) Indo-Australian plate
  • (D) American plate

11. Rocks are made of chemicals called minerals. Minerals are formed by natural processes these are generally crystalline and inorganic. About how many minerals are presently known?

  • (A) 1000
  • (B) 2000
  • (C) 3000
  • (D) 4000

12. Who classified the minerals according to chemical composition on modem lines?

  • (A) Axel Fredrik Gronotedt
  • (B) James Dwight Dana
  • (C) Theophrastus
  • (D) Waldemar Lingren

13. Which of the following is an important physical property of minerals?

  • (A) Hardness
  • (B) Cleavage
  • (C) Specific gravity
  • (D) All the above

14. The simplest estimate of the hardness of minerals involves scratching by reference minerals arbitrarily chosen for the Mohs scale which placed in numerical order of increasing hardness from 1 to 10. Who was Friedrich Mohs?

  • (A) Professor of Physics
  • (B) Professor of Mineralogy
  • (C) Professor of Geography
  • (D) Professor of Chemistry

15. Minerals result from a sequence of complex processes that began with chemical differentiation of the solar system to form planets and that ended in many cases with crystallization in rocks or ore bodies controlled by trivial local factors. Which of the following branch of science is important in the general understanding of the occurrence of minerals in nature?

  • (A) Geochemistry
  • (B) Geophysics
  • (C) Petrology
  • (D) All the above

16. The property of hardness is dependent upon the strength of the forces holding atoms together in a solid. Name the hardest natural mineral.

  • (A) Quartz
  • (B) Appetite
  • (C) Diamond
  • (D) Corundum

17. Name the second hardest natural occurring mineral.

  • (A) Corundum
  • (B) Topaz
  • (C) Fluorite
  • (D) Calcite

18. Some knowledge of mineralogy is fundamental in most branches of geology. Which of the following sciences is closely relate to mineralogy?

  • (A) Petrography
  • (B) Petrology
  • (C) Geochemistry
  • (D) All the above

19. Who is considered as the founder of Petrology?

  • (A) William Nicol
  • (B) Henry Clifton Sorby
  • (C) E.S. Fedfcrov
  • (D) Paul Knipping

20. All mineral have regular arrangement of atoms that have some geometrical symmetry. Which branch of physical science is involved in the structure determination?

  • (A) Holography
  • (B) Crystallography
  • (C) Refractometry
  • (D) Mass Spectrometry

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