Plant trees.
Meaning: This means to put seeds or young trees into the ground so they can grow. It's like saying, Help to create more trees by planting seeds or young trees.
Choice of Words: Plant means to put a seed, bulb, or young plant into the ground so it can grow. Trees are large, long-lived plants that provide many benefits to the environment and to people. When you put them together, "Plant trees" means to put seeds or young trees into the ground so they can grow.
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Related Expressions