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حیاتیاتی مسئلے کا حل

Written by Dr. Hira Salman (Biology)

9 سوالات: نویں جماعت حیاتیات، جوابات اور وضاحت کے ساتھ۔

جوابی کنجی کے ساتھ قابلِ پرنٹ ورک شیٹ

تمام سوالات جوابات کے ساتھ
  1. A testable explanation for an observation is called a:

    • 1 Hypothesis
    • 2 Theory
    • 3 Law
    • 4 Conclusion
    جواب دیکھیں

    درست جواب: Hypothesis

    A hypothesis is a proposed explanation that can be tested by experiment.

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  2. In an experiment, the factor that is deliberately changed is the:

    • 1 Dependent variable
    • 2 Control
    • 3 Independent variable
    • 4 Constant
    جواب دیکھیں

    درست جواب: Independent variable

    The independent variable is the one the experimenter changes.

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  3. A control group is used to:

    • 1 Compare with the group being tested
    • 2 Avoid recording data
    • 3 Change the hypothesis
    • 4 Increase the result
    جواب دیکھیں

    درست جواب: Compare with the group being tested

    The control group does not receive the treatment and gives a baseline for comparison.

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  4. Which step comes first in the scientific method?

    • 1 Publishing the result
    • 2 Recognising a problem
    • 3 Writing the conclusion
    • 4 Analysing data
    جواب دیکھیں

    درست جواب: Recognising a problem

    The method begins with noticing a problem or asking a question.

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  5. A theory differs from a hypothesis because a theory:

    • 1 Cannot be changed ever
    • 2 Is only about animals
    • 3 Has been supported by a lot of evidence
    • 4 Is a guess
    جواب دیکھیں

    درست جواب: Has been supported by a lot of evidence

    A theory is a well supported explanation backed by many tests.

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  6. Data collected as numbers is called:

    • 1 A control
    • 2 Qualitative data
    • 3 A hypothesis
    • 4 Quantitative data
    جواب دیکھیں

    درست جواب: Quantitative data

    Numbers and measurements are quantitative data.

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  7. The final step of a scientific investigation is to:

    • 1 Draw and report conclusions
    • 2 Change the hypothesis before testing
    • 3 Hide the data
    • 4 Stop observing
    جواب دیکھیں

    درست جواب: Draw and report conclusions

    Conclusions are communicated at the end.

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  8. An observation involving descriptions such as colour is:

    • 1 A law
    • 2 A theory
    • 3 Quantitative
    • 4 Qualitative
    جواب دیکھیں

    درست جواب: Qualitative

    Qualitative data describes qualities.

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  9. A variable kept the same during an experiment is the:

    • 1 Controlled variable
    • 2 Dependent variable
    • 3 Result
    • 4 Independent variable
    جواب دیکھیں

    درست جواب: Controlled variable

    Controlled variables are kept constant for a fair test.

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