Dragonflies are helpful because they eat pests like mosquitoes and flies, helping to control their populations. They also serve as indicators of water quality, with their presence indicating a healthy ecosystem. Additionally, dragonflies play a role in pollination of plants.
The noun form of the adjective 'helpful' is helpfulness.The word 'helpful' is the adjective form of the noun help.
Gps is helpful because it helps you find location and where you are and Gps are known to be in cars.
A telescope is the most helpful tool when observing the moon.
They are helpful because they clean out intestines. they are harmful because they can cause diseases
molds
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