EVS .CHAPTER-Types Of Plants

Types of plants

Key words

harsh	commercially
fleshy	evergreen
dense	carnivorous
elevation	slanting
coastal	enclosed
rainforest	mosses
drip tip	floating
buttress root	aquatic

Features of plants growing in different regions

Region	Features	examples
Deserts	·       Long roots to search water. ·       Fleshy stems to store water. ·       No or less leaves to reduce water loss.	Date palm, keekar, khair and khejri.
Rainforests	·       Thin bark as they do not have to store water ·       Drip trip enables rain drops to run off quickly.            Buttress roots to       help tree stand	Wild jack, bishop wood, dhup
Aquatic	1.Floating ·       Light and spongy stem 2.Fixed ·       Roots fixed to the bottom of the water body. ·       Thin and hollow stem	Floating:duckweed Fixed:lotus and hydrilla
Coastal	Leaves are thick and shiny.            Roots grow near the surface of the soil and spread out wide.            Tough roots	Coconut, areca nut, pandanus
Mangroves	Special breathing   roots that grow above  the ground.	Sundari, Khalsi, garjan
Cold	Slanting branches help snow slide down easily.          Seeds enclosed in cones to protect them against the cold weather.          Leaves have waxy layer.	Pine, fir, moss, deodar
Carnivorous	Leaves show modifications that help in trapping insects.	Pitcher plant, venus fly trap

Give reason

1.  Plants of the cold regions have needle shaped leaves.

Ans: Plants of the cold regions have needle shaped leaves to reduce water loss and to prevent any damage from snow.

2.  The roots of the plants growing in rocky shores are tough.

        Ans: The roots of the plants growing in rocky shores are tough as they often have to make their way through the rocks.

3.  Growth in the coastal areas is challenging for the plants.

Ans: Growth in the coastal areas is challenging for the plants because of windy weather and excessive salt.

                   Answer The Questions.

Q.1.Why do trees growing on mountains have slanting branches?

Ans : Slanting branches allow snow to slide down easily.

Q.2.Which features of pine trees help them survive in the cold weather?   Ans:   Pine leaves are needle like and have waxy coating to prevent any damage         from snow.