Wetlands function like natural tubs or sponges, storing water and slowly releasing it.A．YB

The walls function like a dam to keep the water _____ and the structure lies naturally

Wetlands can be thought of as "biological supermarkets" because dead plant leaves and stem

Wetlands are some of the most biologically productive natural ecosystems in the world, com

She likes the _______ flower instead of the natural one.A、articleB、adventureC、ancientD、

The security of this job is so great that employees are more likely to die of natural caus

Googles eyeglasses are supposed toA．improve our memory.B．function like memory.C．help us se