Answer:
Answer is A
Explanation:
Urea consists of carbon, nitrogen and oxygen. You can find it in urine, sweat, blood and milk in mammals. In its most concentrated form, it is urine. Urea is a crystalline compound, and the nitrogen content is always at least 46 percent when dry.
Answer is the Blending process
Answer: Water cannot/is slower to be gradually soaked into it's soil in built environments with large unregulated soils, but rushes the environment, transporting toxins and ecological sewage into our rivers, killing fish, animals and possibly even us.
Answer: D. Extinctions occur at higher rates during times of ecological stress when populations and species are poorly adapted.
B is correct
Acids are molecular compounds that release hydrogen ions. A binary acid consists of hydrogen and one other element.