This has to do with soil moisture and temperature conditions. High temperature decreases the concentration of dissolved in the moisture in the leaf tissues. This occurs from either added moisture in the air, or falling ambient air temperature. The climate is semiarid in moisture and subtropical in temperature. Their stability comes from the high sodium content with low moisture, and low water activity. These decomposition bacteria reproduce at rapid rates under conditions of moisture and preferred temperatures. Used to absorb moisture, tar and nicotine. Mica is stable when exposed to electricity, light, moisture, and extreme temperatures. Weeds compete with the crop for moisture and nutrients, making them undesirable. Shoes do not prevent or reduce damage from moisture and ammonia exposure. It competes with other species for sunlight, moisture and nutrients. Brooding position varies according to soil moisture. Books are subject to damage from sunlight, moisture, and insects. Alkyds has good solvent, moisture and UV light resistance. Unprotected carbon steel rusts readily when exposed to a combination of air and moisture.