why plants are important
TRANSCRIPT
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WHY PLANTS ARE IMPORTANTPlants : are the backbone of all life on Earth and an essential resource for human-being. Just think about how your everyday life depends on plants.
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Food : Everything we eat comes directly or indirectly from plants. Throughout human history, approximately 7,000 different plant species have been used as food
by people.
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Water : Plants regulate the water cycle: they help distribute and purify the planet's water. They also help move water from the soil to the atmosphere through a
process called transpiration.
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Air : Oxygen is brought to you by plants, as a byproduct of
photosynthesis.
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Habitat : Of course, aside from humans' myriad uses, plants make up the backbone of all habitats. Other
species of fish and wildlife also depend on plants for food and shelter.
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Medicine : One-quarter of all prescription drugs come directly from or are derivatives of plants. Additionally, four out of five people around the world today rely on
plants for primary health care.