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Class 9 (1226 questions)
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by GIANSH GUPTA KHUNDKER
· Class 9
Which mining method is most suitable when a valuable mineral deposit is located deep underground beneath thick layers of stable rock?A) Open-cast miningB) Strip miningC) Sub-surface (shaft) miningD) Artisanal panning
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by GIANSH GUPTA KHUNDKER
· Class 9
What component within a wind turbine is responsible for increasing the rotational speed of the shaft to make electricity generation efficient?A) Main bladesB) Tower supportC) Gear-boxD) Anemometer
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by GIANSH GUPTA KHUNDKER
· Class 9
Which greenhouse gas is the primary contributor to man-made global warming due to the extensive burning of fossil fuels like coal and oil?A) Carbon dioxideB) OxygenC) HydrogenD) Nitrogen
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by GIANSH GUPTA KHUNDKER
· Class 9
In a natural gas power plant, what is the initial form of energy stored inside the fuel before it is processed?A) Thermal energyB) Chemical energyC) Electrical energyD) Kinetic energy
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by GIANSH GUPTA KHUNDKER
· Class 9
Which of the following is NOT part of the traditional 4Rs framework used by a "Green Warrior" to manage waste sustainably?A) RefuseB) ReduceC) RecycleD) Recreate
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by GIANSH GUPTA KHUNDKER
· Class 9
An economy that reduces environmental risks, decreases ecological scarcities, and aims for sustainable development is known as a:A) Green EconomyB) Traditional EconomyC) Command EconomyD) Free Market Economy
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by GIANSH GUPTA KHUNDKER
· Class 9
The United Nations Sustainable Development Goal 6 (SDG 6) specifically aims to ensure availability and sustainable management of which resource by 2030?A) Affordable and Clean EnergyB) Clean Water and SanitationC) Climate ActionD) Life on Land
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by GIANSH GUPTA KHUNDKER
· Class 9
Which subatomic particle carries a negative charge and orbits the nucleus?A) ProtonB) NeutronC) ElectronD) Nucleon
Science
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by GIANSH GUPTA KHUNDKER
· Class 9
Which separation method is most suitable for recovering pure water from a salt water solution?A) FiltrationB) EvaporationC) Simple distillationD) Paper chromatography
Science
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
What type of energy conversion takes place when you rub your hands together?A) Chemical to thermalB) Kinetic to thermalC) Potential to kineticD) Electrical to thermal
Science
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
According to the law of reflection, the angle of incidence is always equal to:A) The angle of refractionB) The angle of reflectionC) exactly 90 degreesD) The angle of the normal
Science
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
Why is aluminum metal unreactive with air under normal conditions?
A) It is located very low in the reactivity series.B) It is covered with a protective, unreactive layer of aluminum oxide.C) It melts at a very high temperature.D) It reacts only when it is in a liquid state.
Science
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
Which plant tissue is responsible for transporting water and dissolved minerals from the roots to the rest of the plant?A) PhloemB) XylemC) CortexD) Cambium
Science
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
Which of the following statements about the unit of pressure is correct?A) Pressure is measured in Newtons (N).B) Pressure is measured in Watts (W).C) Pressure is calculated by multiplying Force by Area.D) Pressure is measured in Pascals (Pa), which are equivalent to Newtons per square meter (\(\frac{N}{m^{2}}\)).
Science
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by GIANSH GUPTA KHUNDKER
· Class 9
When a dark grey solid iodine is heated, it changes directly into a purple gas without melting. Which term describes this phase change?
A) EvaporationB) CondensationC) SublimationD) Melting
Science
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
Which of the following is the best definition of a gene?A) A thread-like structure of DNA that carries genetic information.B) A length of DNA that codes for a specific protein.C) The entire genetic material of an organism.D) A different version of a particular gene.
Science
Other
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by GIANSH GUPTA KHUNDKER
· Class 9
Rearrange the following jumbled letters to make a meaningful word and identify the odd one out:LNUAIMMIU, ELEST, OPERPC, INCKLE.
A) NMKOYE
B) OPERPC
C) INCKLE
D) ELEST
Reasoning
Alphabet Test
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by GIANSH GUPTA KHUNDKER
· Class 9
There are five houses in a line: A, B, C, D, and E. House B is to the right of C, and house A is to the left of B but to the right of C. House E is to the left of C, and house D is to the right of E but to the left of C. Which house is in the middle?
A) House A
B) House B
C) House C
D) House D
Reasoning
Analytical Reasoning
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by GIANSH GUPTA KHUNDKER
· Class 9
Pointing to a picture, Amit said, "She is the only daughter of my father's only son." How is the girl related to Amit?
A) NieceB) SisterC) DaughterD) Cousin
Reasoning
Blood Relations
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by GIANSH GUPTA KHUNDKER
· Class 9
If PINK is coded as 1691411, how will RED be coded?
A) 1854B) 1963C) 1954D) 1853
Reasoning
Coding and Decoding
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