Could you help me identify the adverb in the following sentences?

1-Wetlands often reduce the risk of floods.
2-They greedily absorb heavy rains.
3-They release the water slowly, preventing floods.
4-Wetlands are very useful for removing pollution.
5-Wetland soils and plants can filter away poisons.
6-Wetlands are vitally important to many animals.
7-The ice in shallow wetlands melts early.
8-Spring plants grow easily in the fields.
9-These plants provide urgently needed food for many animals.
10- People never think of the benefits provided by wetlands.