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NCERT Class 4 Science Solutions Adaptation in Plants Part 2

Match the following

Match Plant Types and regionsMatch Plant Types and Regions
List IList II
PalmWater
Tape grassMarshes
BirchPlains
MangrooveMountain
MangoDesert

Match the correct words for the following images

Illustration: NCERT Class 4 Science Solutions Adaptation in Plants Part 2
Illustration: NCERT Class 4 Science Solutions Adaptation in Plants Part 2

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