1. Huge rocks and boulders are broken by short stretches of coarse gravel . 2. The seafloor is stable and consists of rock, coarse gravel , and large boulders. 3. It left areas covered with coarse gravel and rock outcroppings. 4. Downstream of that road, the streambed consists of coarse gravel , with an average particle size of. 5. The floor is sandy, except towards the middle of the tunnel where the base becomes coarse gravel . 6. Coarse gravel in the channel captures runoff from the hill and diverts it around and away from the house.7. Dig out the bottom of the well to a depth of at least 12 inches before filling with coarse gravel . 8. The clearly defined fault was exposed in the trench and emerged as a band of coarse gravels lining the hanging wall. 9. Below the separating layer is the drainage layer consisting of coarser gravel that prevents clogging near the base of the outlet tube. 10. Kedah danios are egg-scatterers that spawn over a coarse gravel bed ( marbles or java moss are often used by hobbyists ).
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