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Unicus Olympiad Exams

Why Do Some Plants Grow Tall While Others Stay Small?

Some plants grow tall, and some stay small because of their type and how they adapt to their surroundings. Tall plants, like trees, have strong stems to reach for sunlight. Smaller plants, like flowers, don't need to be tall to live happily. They can grow close to the ground where it is cozy and safe.

Example: A sunflower grows tall to catch sunlight, while a clover stays low to the ground to keep safe from strong winds.

Fun Fact: Some plants are small because they live in places where they can't grow tall, like in rocky areas.

Multiple Choice Questions:

1. Why do trees grow tall?

a) To reach for sunlight

b) To stay small

c) To hide from animals

d) To stop growing

2. Which plant is likely to stay small?

a) Oak tree

b) Daisy flower

c) Pine tree

d) Sequoia tree

3. What helps tall plants grow?

a) Strong stems

b) Little sunlight

c) Soft soil

d) Cold weather

4. Why might a plant stay small?

a) It grows too tall

b) It doesn't get enough water

c) It likes being small

d) It has no leaves

5. What do plants need to grow tall?

a) Sunshine.

b) Ice cream

c) Rocks

d) Toys

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