Scientists have found that conifers (spruce, pine) are less resistant to industrial air pollution

Scientists have found that conifers (spruce, pine) are less resistant to industrial air pollution than deciduous trees. Explain the reason for this phenomenon.

1) Various harmful substances settle in the leaves.
2) In deciduous plants, the leaves fall annually, and harmful substances are removed with them, in conifers, the leaves live 3-5 years or more, so harmful substances are not removed and lead to poisoning of the body

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