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If the top portion of plants grow “up”, explain why a small tree on a hillside does not grow straight out from the hillside?

Respuesta :

Plants want to reach the sun. They need the sunlight to produce energy and food. Since a small tree needs sunlight, it will grow towards the sun. The trunk and its leaves will face the light.

I hope this helped you!
The reason why a small tree does not grow straight out is because plants grow against gravity.