Question

Growth in plants is restricted to certain regions. why? Mention two growth regions in plants.

Answer 1

branches and leaves of plant
are growth regions in plant.

Answer 2

Hello !
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Growth of a plant is depend upon many factors like 
wind pattern 
Rain 
Soil 
Humidity 
Climate 
Geotropism 
hormones 
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Negative geotropism is important because it allows plants to grow against gravity . gravity varies throughout the world so the growth also varies