Page 58 - Viva ICSE Science 4 : E-book

• Leaves are waxy and needle-like to prevent loss of water.
Did You Know!
• These trees are fl owerless and in place of fl owers, they
Trees that produce
have cones with seeds inside them. cones are called
conifers. Most of
• Pine, fi r, deodar, spruce and cedar are some trees that
them are evergreen
grow in hilly areas. trees.

Plants growing in marshy areas

Marshy areas or swamps are areas of low land that are always

wet. Due to high water content, the soil is clayey and very sticky.
Plants growing in these areas are called mangroves. They show
the following adaptations.

• Roots of mangroves do not get suffi cient air. Therefore,

these plants have specialised roots Breathing roots of
called aerial or breathing roots that Did You Know! mangroves
Sunderbans in West
grow above the soil. They help them
Bengal (India) is famous
to breathe. for its mangrove

• Grey mangroves grow in swamps. forest.

Plants growing in coastal areas

Coastal areas are areas with hot and wet climate. The soil in coastal areas are sandy and

saline (salty), and these places are generally windy. Trees growing in these areas show
following adaptations.

• The plants that grow in coastal areas can tolerate the
presence of saline soil and withstand strong blowing wind.

• They bear many leaves and do not shed them throughout
the year.

• The fruits and seeds of trees get easily dispersed by sea.
Coconut trees in
• Coconut, teak and rubber grow well in coastal areas.
coastal area
TIME TO REVISE

Fill in the blanks.
1. A plant adapts itself according to the climatic conditions of its ___________ (habitat/water).

2. Trees that do not shed their leaves are called ___________ (deciduous/evergreen) trees.
3. Plants that grow in marshy areas are called ___________ (swamps/mangroves).

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