Class 7 practice
Class 7 gk questions.
GK questions for Class 7, at the level of students aged 12–14, each with its answer and a short explanation. Try each one before opening the answer.
Which major body of water lies to the east of the Indian peninsula?
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Answer: Bay of Bengal
Peninsular India is bounded by the Bay of Bengal to the east and the Arabian Sea to the west.
In badminton, what is the light object with feathers or plastic skirt hit across the net?
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Answer: Shuttlecock
Players hit a shuttlecock back and forth across the net using lightweight rackets.
On the banks of which river is the Taj Mahal located in Agra?
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Answer: Yamuna
The Taj Mahal was constructed during the seventeenth century along the southern bank of the Yamuna River.
Which green pigment in plant leaves absorbs sunlight to carry out photosynthesis?
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Answer: Chlorophyll
Chlorophyll is the green pigment found in chloroplasts. It traps sunlight energy needed to make food during photosynthesis.
Which planet in our solar system is commonly known as the Red Planet?
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Answer: Mars
Mars appears reddish because its surface contains a large amount of iron oxide, commonly known as rust.
What is the sum of the three interior angles in any triangle?
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Answer: 180 degrees
By the angle sum property of plane geometry, the three interior angles of every triangle add up to 180 degrees.
What term describes animals that feed exclusively on plants and plant parts?
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Answer: Herbivores
Herbivores, such as cows, deer, and rabbits, obtain all their nutrients by consuming plant matter.
Which chemical element has the symbol O and is essential for aerobic respiration?
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Answer: Oxygen
Oxygen is a chemical element with the symbol O, making up roughly 21 percent of Earth's air.
Who served as the chairman of the Drafting Committee of the Indian Constituent Assembly?
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Answer: Dr. B. R. Ambedkar
Dr. B. R. Ambedkar headed the Drafting Committee, which framed the Constitution of India.
Which green pigment present in plant leaves traps sunlight during photosynthesis?
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Answer: Chlorophyll
Chlorophyll gives leaves their green colour and absorbs light energy required for plants to synthesize food through photosynthesis.
Which green pigment in plant leaves traps light energy to help make food during photosynthesis?
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Answer: Chlorophyll
Chlorophyll gives leaves their green colour and absorbs sunlight needed to convert carbon dioxide and water into glucose.
- True or false?
Sound travels faster through air than through solid steel.
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Answer: False
Sound travels much faster through solids like steel than through gases like air because particles in solids are packed closely together.
- True or false?
Light travels faster in air than sound does.
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Answer: True
Light travels at about 300,000 kilometres per second in air. Sound travels much slower, at about 340 metres per second in air.
- Fill in the blank.
A standard non-leap calendar year contains exactly ___ days.
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Answer: 365
A common year has 365 days, while a leap year has 366 days with an extra day added in February.
- Fill in the blank.
The closest planet to the Sun in our solar system is ___ (clue: starts with M).
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Answer: Mercury
Mercury is the smallest planet and orbits nearest to the Sun at an average distance of roughly 58 million kilometres.
Which Indian river is the odd one out?
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Answer: Godavari
Godavari flows east into the Bay of Bengal, whereas Narmada, Tapi, and Sabarmati flow west into the Arabian Sea.
Mangrove trees grow in waterlogged coastal swamps. What are the breathing roots called that grow upward to take in air?
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Answer: Pneumatophores
Pneumatophores grow upward out of the mud and water. They feature pores that absorb oxygen from the air.
- True or false?
Plants absorb nitrogen gas directly from the atmosphere through their stomata to make proteins.
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Answer: False
Plants cannot take in atmospheric nitrogen directly. Soil bacteria convert nitrogen into nitrates, which roots absorb from the soil.
- Fill in the blank.
The continuous spinning movement of the Earth upon its own axis is termed ___ (r___).
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Answer: rotation
The Earth takes approximately 24 hours to complete one full rotation, which causes the cycle of day and night.
Which of the following everyday changes is the odd one out?
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Answer: Melting of ice
Melting of ice is a reversible physical change. Rusting of iron, curdling of milk, and burning of paper are chemical changes.
These questions come from Ado’s question bank and are written with AI help. They are never used in ranked play, so practising them here can’t change anyone’s rank.
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