The Importance of Plants to Life on Earth

The Importance of Plants to Life on Earth book cover — LET’S FIND OUT PLANTS THE IMPORTANCE OF PLANTS TO LIFE ON EARTH YEA JEE BAE Britannica Educational Publishing IN ASSOCIATION WITH ROSEN EDUCATIONAL SERVICES

The Importance of Plants to Life on Earth — page 1 — LIFE STARTS WITH PLANTS From tiny patches of grass clinging to cliffs to giant trees as tall as towers plants are found all over the world If there is sunlight water and air plants can grow and some plants can exist with even less More than three hundred thousand different species of plants have been discovered Scientists believe that there are This juniper tree in Yosemite National Park in central California is able to grow on a rocky cliff 4

The Importance of Plants to Life on Earth — page 2 — a great many more species that are still unidentified New plant species continue to be found in less explored areas of the world such as tropical forests Think About It New plants are often found in tropical forests Why do you think tropical forests have so many different plant species Most plants are rooted in one place and are not able to move around A stiff material called cellulose makes up their cell walls and gives them shape Through a process called photosynthesis plants create their own food In many many ways humans and animals depend on plants Without plants life as we know it could not survive on Earth Many animals like these impalas in Kenya graze on plants for their primary source of food 5

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