It increases ecosystem productivity, protects fresh water resources, and provides nutrient storage and recycling
<span>Tsetse flies feed by piercing the skin with their mouthparts and: Sucking the blood of animals and humans. </span>
The correct answer is gravity.
The planets and other heavenly bodies are attracted towards the earth by the earth's gravity. The pull which is formed by the gravity of earth holds the objects near the earth surfaces. The planets and atmosphere is also kept around the earth's surface by the gravity.
Phosphate naturally occurs in both rocks and other mineral deposits. Throughout the natural process of weathering, the rocks gradually release the phosphate and the phosphate ions which are soluble in water mineralize phosphate compounds breakdown.