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Polyurethane is a sealant; it keeps water from absorbing into the wood by filling the microscopic pores and grains. If water enters the wood, it can warp and become unstable.
drinking water using lotion around the cuticle
Add water. If you can, poke holes in it so the water can really soak. Wrapping it in a plastic bag will also prevent it from hardening so quickly.
Crops hold the soil together with their roots, therefor preventing soil erosion.
It is big subject and answer could be 2-3 chapters: Water related erosion can be prevented by: 1. Creation of check dams. 2. Lining and check dam creations 3. Across the slop furrowing 4. Vegetation at the steep slopes 5. Trees to prevent erosion cause by rain 6. System to get water seeping at subsoil level.
Yes, vinyl porch columns are constructed to prevent water damage. Vinyl strips are placed on top of the wood or metal posts, so as to prevent the colums from warping or rusting.
Terracing prevents erosion, leaching and surface run-off, by trapping and slowing the water and soil that are being washed away.
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fresh water
lumber and water
Because there isn't enough water for trees to grow in the desert. No trees, no lumber.
distillation
distillation
Yes, you can fix hard wood floors with water damage. First, dry the area to prevent mold and wood warping. Second, remove the damaged area to dry out the subfloor. Once you have dried the damaged area, the replacement wood can be installed.
distillation
distillation
A bottle, though heavier than water, can be made to float by trapping air inside of it. This same bottle can be made to sink by filling it with water, or a substance heavier than water. It can again float by emptying it and trapping air in it.