Question

Deciduous trees, such as maple and elm trees, regularly drop their leaves in a response to a change in the environment.
What event causes deciduous trees to do this?

Answer 1

Answer:

Life could not exist on Earth without trees because they produce most of the oxygen that humans and wildlife breathe. Trees absorb carbon dioxide from the atmosphere and release oxygen using the process of photosynthesis. Trees can also act as noise filtersWhy Humans Can't Live Without Trees. Trees (and other plants) produce oxygen. Human and animal life need the oxygen for their survival, which trees (and plants) produce. Trees remove carbon dioxide (CO2) from the atmosphere and produce the oxygen (O2) that we breathe.

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