NCERT Class 4 Science Solutions Adaptation in Plants Part 2

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Match the following

Match Plant Types and Regions
Match plant types and regions

List I

List II

Palm

Water

Tape grass

Marshes

Birch

Plains

Mangroove

Mountain

Mango

Desert

Match the correct words for the following images

Match the Words and Images

Match the Words and Images

Match the Words and Images

Plant varieties

Plant Varieties

Plant varieties

Short Answer Question:

Q 1. Describe the types of aquatic plant. How do aquatic plants adapt to the environment?

Answer: There are three types of aquatic plants –

  • Fixed plants –

    • Their stems are hollow, light and very flexible so that it can withstand in water

    • Their leaves are flat to help float on the surface of the water.

    • The stomata are present on the upper surface of the leaves as lower surface is on the water.

  • Floating plants -

    • They are like sponges they have empty pores to absorb air which helps in floating.

    • They are generally small in size.

    • They have thick, branched, dark fibrous roots underneath the water.

  • Underwater plants -

    • Their roots fix them to the muddy soil.

    • Heir stems are flexible and have air spaces.

    • They have narrow, thin leaves with no stomata. They breathe through body surface.

Q 2. Name two types of conifers. How do conifers adapt to the environment?

Answer: Trees that grow in the mountainous regions are coned shaped and hence called

Conifers. Trees such as pine, fir, spruce and cedar are types of conifers.

  • They are shaped like cones to shrug off the snow easily.

  • Conifers have needle –shaped leaves, which are very tough and can survive the cold climatic conditions.

  • These are evergreen trees

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