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Test: Adaptations in Plants- 2 - Class 4 MCQ


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10 Questions MCQ Test Science for Class 4 - Test: Adaptations in Plants- 2

Test: Adaptations in Plants- 2 for Class 4 2024 is part of Science for Class 4 preparation. The Test: Adaptations in Plants- 2 questions and answers have been prepared according to the Class 4 exam syllabus.The Test: Adaptations in Plants- 2 MCQs are made for Class 4 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Adaptations in Plants- 2 below.
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Test: Adaptations in Plants- 2 - Question 1

How do floating plants like duckweed and water hyacinth stay on the surface of water?

Detailed Solution for Test: Adaptations in Plants- 2 - Question 1

Floating plants like duckweed and water hyacinth stay on the surface of water because they are spongy and light. This means they are full of air and very light, like a sponge. This helps them float easily on the water.

Test: Adaptations in Plants- 2 - Question 2

Water covers about 71% of the Earth's surface, so aquatic habitats occupy a greater area than _____ ones.

Detailed Solution for Test: Adaptations in Plants- 2 - Question 2

Aquatic habitats are areas in the water like oceans, seas, lakes, ponds, rivers, and streams. Terrestrial habitats are places on land like forests and gardens.

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Test: Adaptations in Plants- 2 - Question 3

State whether the following statement is True or False:

Water lily is an example of a floating plant.

Detailed Solution for Test: Adaptations in Plants- 2 - Question 3
  • Explanation: Water lily is not an example of a floating plant. Water lilies are fixed plants with roots fixed to the bottom of the water body such as a pond. They have broad leaves that float on water, and they have waxy coatings that help keep the leaves dry and prevent rotting. So, the statement is False.
  • Interesting Fact: Water lilies are known for their beautiful flowers that bloom on the surface of the water!
Test: Adaptations in Plants- 2 - Question 4
What are plants called that grow on land?
Detailed Solution for Test: Adaptations in Plants- 2 - Question 4
  • Plants that grow on land are called terrestrial plants.
  • These plants are adapted to living on the ground, unlike water plants that grow in water.
  • Terrestrial plants have roots that help them absorb water and nutrients from the soil to grow big and strong.
  • So, the correct answer is terrestrial plants, which means plants that grow on land.
Test: Adaptations in Plants- 2 - Question 5

State whether the following statement is True or False:

Plants that grow in the plains have leaves that help water to evaporate and keep the tree cool when the climate gets hot.

Detailed Solution for Test: Adaptations in Plants- 2 - Question 5
  • Plants that grow in the plains have leaves that help water to evaporate and keep the tree cool when the climate gets hot.
  • Explanation: This statement is True. Plants in the plains have flat leaves that help water to evaporate and keep the tree cool when it's hot. Flat leaves also help to trap a lot of sunlight, which the plant needs for photosynthesis, a process that helps plants make their food.
Test: Adaptations in Plants- 2 - Question 6

What is the main reason some trees shed all their leaves at once during autumn?

Detailed Solution for Test: Adaptations in Plants- 2 - Question 6

Some trees shed all their leaves during autumn to survive harsh weather. This helps them conserve energy and protect themselves from the cold. By dropping their leaves, the trees can focus on staying strong until spring comes again.

Test: Adaptations in Plants- 2 - Question 7

State whether the following statement is True or False:

Mango is an example of an evergreen tree.

Detailed Solution for Test: Adaptations in Plants- 2 - Question 7
  • The tree is evergreen, often reaching 15–18 metres (50–60 feet) in height and attaining great age. 
Test: Adaptations in Plants- 2 - Question 8

Why do trees in coastal areas have a strong stem?

Detailed Solution for Test: Adaptations in Plants- 2 - Question 8

Trees in coastal areas have a strong stem so that they can withstand strong winds that blow near the sea. This helps the trees stay upright and not get blown down easily. It's like how you hold onto something sturdy when it's windy so you don't get blown away.

Test: Adaptations in Plants- 2 - Question 9
Which characteristic allows Hydrilla leaves to survive underwater?
Detailed Solution for Test: Adaptations in Plants- 2 - Question 9
Hydrilla leaves are thin and narrow, which allows water to pass through them easily without causing damage. This adaptation helps the plant survive in the flowing water environment. Additionally, this feature prevents the leaves from tearing due to water movement, ensuring the plant remains intact.
Test: Adaptations in Plants- 2 - Question 10
What does a habitat provide for an organism?
Detailed Solution for Test: Adaptations in Plants- 2 - Question 10
A habitat provides everything an organism needs to survive, including food, water, shelter, and appropriate living conditions. For plants, this means having the necessary resources to grow and reproduce, even in varied and extreme environments like deserts, mountains, and underwater regions. Adaptations help plants thrive in these diverse habitats.
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