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  • Question
  • In December 2015, NASA's Curiosity Mars rover found the presence of ____, which will help scientists learn about the ancient wet environment.


  • Options
  • A. Magnesium
  • B. Cadmium
  • C. Silica
  • D. Calcium

  • Correct Answer
  • Silica 


  • General Science problems


    Search Results


    • 1. What is the name of the most ancient spiral galaxy that existed 11 billion years ago?

    • Options
    • A. A1689 B01
    • B. A1689 B10
    • C. A1689 B20
    • D. A1689 B11
    • Discuss
    • 2. How much time does a Geostationary satellite take to complete one orbit, at the height of 35790 km?

    • Options
    • A. 30 days
    • B. 24 hours
    • C. 365 days
    • D. 12 hours
    • Discuss
    • 3. Asexual reproduction takes place in

    • Options
    • A. Plants
    • B. Higher animals
    • C. Lower animals
    • D. Lower animals and plants
    • Discuss
    • 4. Which of the following metals is stored in kerosene oil?

    • Options
    • A. Copper
    • B. Sodium
    • C. Platinum
    • D. Gold
    • Discuss
    • 5. If ___ is involved, even greater diversity will be generated.

    • Options
    • A. sexual reproduction
    • B. binary fission
    • C. asexual reproduction
    • D. vegetative propagation
    • Discuss
    • 6. Which of the following layers of the atmosphere makes Radio Communication possible?

    • Options
    • A. Troposphere
    • B. Thermosphere
    • C. Ionosphere
    • D. Stratosphere
    • Discuss
    • 7. Fruits preserved in cold storage last longer because -

    • Options
    • A. exposure to humidity is increased
    • B. more oxygen is available
    • C. fruits are stored in a dark place
    • D. the rate of respiration of Fruits is decreased
    • Discuss
    • 8. Why does a black board appears black in colour?

    • Options
    • A. It reflects black colour
    • B. It absorbs black colour
    • C. It reflects all colours
    • D. It absorbs all the colours
    • Discuss
    • 9. Energy travels from Sun to Earth through

    • Options
    • A. conduction
    • B. convection
    • C. radiation
    • D. modulation
    • Discuss
    • 10. The transfer of minerals from top soil to subsoil through soilwater is called?

    • Options
    • A. Percolation
    • B. Conduction
    • C. Leaching
    • D. Transpiration
    • Discuss


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