Assessment Write T if the statement is correct and F if not. 1. The sound that is reflected or returned is called echo. 2. Bats depend on echolocation to find their food, 3. Soft surfaces absorb sound. 4. Sound waves travel in all directions. 5. Walls and carpets reflect and absorb sounds. 6. Sounds need matter to travel 7. Materials like pillows and curtains are good at reflecting sounds. 8. Noise-absorbing walls are used to lessen noise or echoes. 9. Echoes in a concert hall help us enjoy the program. 10. When sound is reflected off an object and bounce back, we hear it again.