The ozone layer helps prevent harmful UV rays from entering the atmosphere.
The answer is A because it is in order( idk how to explain but its A)
Answer:
The answer is C. A thermos slows heat transfer.
Mammal? Is this for science or?
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.