alleryStart learning →Strong wind blows on a tall tree but it does not fall. Which part helps most?
- Its leaves
- Its flowers
- Its fruits
- Its roots
Show answer and solution
Correct answer: D. Its roots
Roots fix the plant in the soil and resist the pull of wind.
Olympiad (Class 4) Science — practice by topic
Browse 416 questions across 8 Science topics. Choose what you want to revise, then open a question to check its answer and worked solution.
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Strong wind blows on a tall tree but it does not fall. Which part helps most?Read the answer and worked solution →Carrot and sweet potato are roots that we eat. What do these roots store?Read the answer and worked solution →A root system has one thick main root going straight down. What is it called?Read the answer and worked solution →Wheat and rice have many thin roots of similar size. What kind of root system is this?Read the answer and worked solution →
Worked practice questions
Carrot and sweet potato are roots that we eat. What do these roots store?
- Only sunlight
- Only air
- Food and water
- Only soil
Show answer and solution
Correct answer: C. Food and water
Fleshy roots like carrot and sweet potato keep food and water in reserve for the plant.
A root system has one thick main root going straight down. What is it called?
- Fibrous root
- Aerial root
- Taproot
- Floating root
Show answer and solution
Correct answer: C. Taproot
A taproot system has one main root growing vertically downward with smaller side roots.
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