1. The smooth surface makes it easier for agents to detect footprints in the road. 2. Any flat surface will make a good pasting table. 3. A hot engine can ignite the grass, and soft surfaces make it dangerous to change a tire. 4. A nonstick surface makes it easier to clean the pans. 5. He thinks the moister track surface could make a difference, too. 6. Its glowing metallic surface makes its presence felt a long way off. 7. Some scientists suggest the featureless spectrum might indicate a surface made of complex carbon-based molecules transformed from methane by billions of years of bombardment by cosmic rays. 8. The new surface should make a dramatic difference for players. 9. The researchers said playgrounds needed soft surfaces to make them safer. |