Student Questions

Showing: Class 9 (862 questions)

• by GIANSH GUPTA KHUNDKER · Class 9

  Which of the following is a complex plant tissue responsible for the upward transportation of water and dissolved minerals from the roots to the rest of the plant?a) Phloemb) Parenchymac) Xylemd) Sclerenchyma

  Science Tissues thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Which simple permanent plant tissue provides both mechanical strength and flexibility to young, growing plant parts (like stems) without breaking them?a) Parenchymab) Collenchymac) Sclerenchymad) Xylem

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• by GIANSH GUPTA KHUNDKER · Class 9

  Which of the following plant tissues is responsible for the increase in the girth (width) of a stem or root?a) Apical meristemb) Intercalary meristemc) Lateral meristemd) Parenchyma

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• by GIANSH GUPTA KHUNDKER · Class 9

  According to Kepler’s Third Law of Planetary Motion, the square of the orbital period T of a planet is directly proportional to the:A. Cube of the semi-major axis of its orbit (r³)B. Square of the semi-major axis of its orbit (r²)C. Semi-major axis of its orbit (r)D. Inverse square of the semi-major axis of its orbit (\(\frac{1}{r^{2}}\))

  Science Gravitation thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  If the mass of the Earth remains constant but its radius shrinks by 1%, the value of the acceleration due to gravity g on its surface will: A. Decrease by 1%B. Increase by 1%C. Decrease by 2%D. Increase by 2%

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• by GIANSH GUPTA KHUNDKER · Class 9

  During a free-fall, which of the following quantities remains constant for the falling body? A. VelocityB. AccelerationC. Kinetic energyD. Momentum

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• by GIANSH GUPTA KHUNDKER · Class 9

  What happens to the mass of an object when it is taken from the Earth to the Moon?A. It becomes one-sixthB. It becomes six timesC. It increases slightlyD. It remains the same

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• by GIANSH GUPTA KHUNDKER · Class 9

  Who proposed the planetary laws of motion? A. Isaac Newton B. Johannes Kepler C. Galileo Galilei D. Nicolaus Copernicus

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• by GIANSH GUPTA KHUNDKER · Class 9

  What is the weight of a body at the center of the Earth? A. Infinite B. Same as on the surface of the Earth C. Zero D. Less than the weight on the Earth's surface

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• by GIANSH GUPTA KHUNDKER · Class 9

  The value of the acceleration due to gravity (g) on the surface of the moon is about: A. The same as that on Earth B. One-sixth of that on Earth C. One-third of that on Earth D. Six times that on Earth

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• by GIANSH GUPTA KHUNDKER · Class 9

  What happens to the gravitational force between two objects if the distance between them is doubled? A. It becomes double B. It becomes half C. It becomes one-fourth D. It remains the same

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• by GIANSH GUPTA KHUNDKER · Class 9

  A country experiences a bumper harvest and its government silos are overflowing with grain. However, due to a broken public distribution network and sudden spikes in local market pricing, a significant portion of the low-income population cannot afford to buy groceries. Which specific dimension of food security has broken down in this scenario? A) Availability of food B) Accessibility of food C) Affordability of food D) Accountability of food

  Green Warrior Food Security and Agriculture thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Statements: Some windows are doors. Some doors are walls. Conclusions: I. Some windows are walls. II. No window is a wall. A) Only conclusion I follows B) Only conclusion II follows C) Either conclusion I or II follows D) Neither conclusion I nor II follows

  Reasoning Other thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Statements: Some scientists are writers. All writers are clear thinkers. Conclusions: I. Some scientists are clear thinkers. II. Some clear thinkers are scientists. A) Only conclusion I follows B) Only conclusion II follows C) Both conclusion I and II follow D) Neither conclusion I nor II follows

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• by GIANSH GUPTA KHUNDKER · Class 9

  Statements:All laptops are computers. No computer is a television. Conclusions: I. No laptop is a television. II. Some computers are laptops. A) Only conclusion I follows B) Only conclusion II follows C) Both conclusion I and II follow D) Neither conclusion I nor II follows

  Reasoning Other thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Statements: All pens are markers. Some markers are scales. Conclusions: I. Some pens are scales. II. Some scales are markers. A) Only conclusion I follows B) Only conclusion II follows C) Both conclusion I and II follow D) Neither conclusion I nor II follows

  Reasoning Logical Venn Diagrams thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  Which Venn diagram best represents the relationship between: Gold, Carbon, and Oxygen? Diagram A: Three mutually intersecting circles. Diagram B: Three completely isolated, non-touching circles. Diagram C: Two concentric circles next to a third detached circle. Diagram D: One large circle enclosing two separate circles. A) Diagram A B) Diagram B C) Diagram C D) Diagram D

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• by GIANSH GUPTA KHUNDKER · Class 9

  Select the correct Venn diagram representing: Women, Mothers, and Engineers. Diagram A: One circle inside another, with a third circle intersecting both. Diagram B: Three completely separate circles. Diagram C: Three mutually intersecting circles. Diagram D: Two separate circles inside a larger third circle. A) Diagram A B) Diagram B C) Diagram C D) Diagram D

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• by GIANSH GUPTA KHUNDKER · Class 9

  During heavy physical exercise, a sprinter's leg muscles undergo anaerobic respiration. Select the option that correctly identifies the substance produced in the muscle cells, the location of this pathway inside the cell, and the symptom it triggers. A) Ethanol; Mitochondria; High fever B) Carbon dioxide; Nucleus; Muscle spasms C) Lactic acid; Cytoplasm; Muscle cramps D) Pyruvate; Chloroplast; Joint swelling

  Science Cell � The Fundamental Unit of Life thumb_up 0 people 0 answers check_circle 0%
• by GIANSH GUPTA KHUNDKER · Class 9

  An experimental drug destroys the Smooth Endoplasmic Reticulum (SER) in a line of mammalian liver cells. Which crucial physiological functions will these liver cells fail to execute? A) Cellular respiration and generation of adenosine triphosphate (ATP) B) Synthesis of lipids/steroid hormones and detoxification of drugs/poisons C) Transcription of messenger RNA from genomic DNA D) Sorting and modification of complex sugars into glycoproteins

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