Answer:
Making an area unavailable to plants and animals
Explanation:
Age, Diet, lifestyle choices, environment and RES
You are testing for the presence of starch: Iodine dissolved in an aqueous solution of potassium iodide - reacts with starch producing a deep blue-black color. This reaction is the result of the formation of polyiodide chains from the reaction of starch and iodine.
The HCG hormone is the answer possibly
