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    4. Important Agriculture Q
    5. Which mineral is considered as a secondary mineral?

    Question

    Which mineral is considered as a secondary mineral?

    A Quartz Correct Answer Incorrect Answer
    B Feldspar Correct Answer Incorrect Answer
    C Biotite Correct Answer Incorrect Answer
    D Gibbsite Correct Answer Incorrect Answer
    E Olivine Correct Answer Incorrect Answer

    Solution

    Gibbsite (Al ₂ O ₃ ·3H ₂ O) forms from weathering of primary minerals. Quartz and feldspar are primary.

    Practice Next
      More Important Agriculture Q Questions
    • The H.C.F. of two numbers is 22 and the other two factors of their L.C.M. are 9 and 11. The larger of the two numbers is:

    • The HCF of two numbers is 14. Which of the following can never be their LCM?

    • What is the least number which when divided by 3, 15 & 18 leave a remainder 6 in each case & it is also divisible by 12?

    • If two numbers are in the ratio 2:3, what is the ratio of their HCF to their LCM?

    • Find the HCF of 3341 and 3328.

    • What is the unit digit of the sum of 3694 and the product of 214 and 123?

    • Four runners started running simultaneously from a point on a circular track. They took 400 seconds, 600 seconds, 720 seconds and 900 seconds to comple...

    • The sum of two numbers is 126 and their HCF is 14. Total number of such pairs of numbers is?     

    • The least number which is exactly divisible by 15, 25 and 30 is 

    • The least common multiple (LCM) of two numbers is 144, and the numbers are in the ratio 4:6. Find their sum.

    Relevant for Exams:

    • MSc Agriculture (Various States)

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