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Class 8 (888 questions)
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by GIANSH GUPTA KHUNDKER
· Class 8
Natural gas is considered a cleaner fuel because:
a) It is easily transportable through pipes
b) It burns with very little smoke
c) It is easy to store
d) It is found deep under the earth
Science
Coal and Petroleum
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by GIANSH GUPTA KHUNDKER
· Class 8
The process of conversion of dead vegetation into coal is called:
a) Carbonisation
b) Distillation
c) Refining
d) Combustion
Science
Coal and Petroleum
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by GIANSH GUPTA KHUNDKER
· Class 8
If 'BOOK' is coded as 'CPPL', how is 'DOOR' coded?
a) EPPS | b) ENNQ | c) FQQS | d) EPOS
Reasoning
Coding and Decoding
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by GIANSH GUPTA KHUNDKER
· Class 8
The angle between the normal and the reflected ray is called the ________.
a) Angle of incidence | b) Angle of reflection | c) Normal angle | d) Lateral angle
Science
Light
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by GIANSH GUPTA KHUNDKER
· Class 8
Which of the following is the purest form of carbon?
a) Coal tar
b) Coal gas
c) Coke
d) Charcoal
Science
Coal and Petroleum
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by GIANSH GUPTA KHUNDKER
· Class 8
Where is the pituitary gland located in the human body?
a) Neck
b) Abdomen
c) Attached to the brain
d) Above the kidneys
Science
Endocrine System
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by GIANSH GUPTA KHUNDKER
· Class 8
What is a major disadvantage of wind energy plants?
a) They emit high levels of greenhouse gases
b) They require a very small area of land
c) They are location-specific and require consistent wind speeds
d) They use non-renewable fuel to operate
Green Warrior
Affordable and Clean Energy
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by GIANSH GUPTA KHUNDKER
· Class 8
The change from a larva to an adult is called metamorphosis. In frogs, this is controlled by ________.
a) Insulin
b) Adrenaline
c) Thyroxine
d) Estrogen
Science
Endocrine System
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people 1 answers
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by GIANSH GUPTA KHUNDKER
· Class 8
The term "3E" in environmental studies typically refers to the interrelation between:
a) Ecology, Evolution, and Economy
b) Energy, Economy, and Environment
c) Ethics, Education, and Energy
d) Efficiency, Effort, and Environment
Green Warrior
Affordable and Clean Energy
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by GIANSH GUPTA KHUNDKER
· Class 8
Which gland is known as the "Master Gland" because it controls other glands?
a) Thyroid
b) Adrenal
c) Pituitary
d) Pancreas
Science
Endocrine System
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by GIANSH GUPTA KHUNDKER
· Class 8
Which of these is a simple way for a student to practice energy conservation at home?
a) Leaving the TV on standby mode all night
b) Switching to LED light bulbs
c) Using incandescent bulbs instead of fluorescent ones
d) Keeping the refrigerator door open while deciding what to eat
Green Warrior
Affordable and Clean Energy
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by GIANSH GUPTA KHUNDKER
· Class 8
Endocrine glands are also known as ________ glands.
a) Small
b) Ductless
c) Secretory
d) Target
Science
Endocrine System
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by GIANSH GUPTA KHUNDKER
· Class 8
Which Sustainable Development Goal (SDG) specifically focuses on providing "Affordable and Clean Energy" for all?
a) Goal 6
b) Goal 7
c) Goal 11
d) Goal 13
Green Warrior
Affordable and Clean Energy
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by GIANSH GUPTA KHUNDKER
· Class 8
The main constituent of Natural Gas and CNG is ________.
a) Butane
b) Methane
c) Ethane
d) Propane
Science
Coal and Petroleum
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by GIANSH GUPTA KHUNDKER
· Class 8
Land degradation is primarily caused by:
a) Afforestation
b) Sustainable farming
c) Deforestation and overgrazing
d) Rainwater harvesting
Green Warrior
Life On Land
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by GIANSH GUPTA KHUNDKER
· Class 8
The process of separating various constituents of petroleum is called ________.
a) Carbonization
b) Refining (Fractional Distillation)
c) Evaporation
d) Decantation
Science
Coal and Petroleum
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by GIANSH GUPTA KHUNDKER
· Class 8
Which conservation method involves covering bare ground with organic matter like straw to retain soil moisture?
a) Terrace farming
b) Contour plowing
c) Mulching
d) Intercropping
Green Warrior
Life On Land
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by GIANSH GUPTA KHUNDKER
· Class 8
"Bishnoi movement" in India was a pioneering effort for forest conservation led by:
a) Pandurang Hegde
b) Amrita Devi
c) Mahesh Chandra Mehta
d) Marimuthu Yoginathan
Green Warrior
Life On Land
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by GIANSH GUPTA KHUNDKER
· Class 8
Which of the following is the purest form of carbon obtained from coal?
a) Coal tar
b) Coal gas
c) Coke
d) Bitumen
Science
Coal and Petroleum
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by GIANSH GUPTA KHUNDKER
· Class 8
Which process involves the gradual breakdown of rocks into smaller pieces by natural forces like wind and water?
a) Erosion
b) Weathering
c) Deforestation
d) Mulching
Green Warrior
Life On Land
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