Answer:
water covering earth surface is 71 percent. e 97 percent. frozen freshwater less than 1 percent
Explanation:
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The factors that affect the amount of friction between two objects is shape, speed, or texture because friction depends on qualities of the objects involved.
The answer, though i'm not quite sure' should be sulphate aerosols, though i think that is actually what the clouds are made out of. So the answer might be instead just stratospheric ash clouds
The macromolecule must be starch.
Explanation:
Starch is a polymer of Glucose joined by glycosydic bond.
Starch is the main energy storage substance in green plants.
Starches react with iodine and give a bluish black or black color and thus iodine test is considered as a confirmatory test for starches.
In this experiment ,the solution turns very dark black on addition of iodine so we can be sure that the solution contained starch.
The primary function of cellular respiration is to break down food molecules and generate ATP.
<h3>What is cellular respiration?</h3>
Cellular respiration is the process by which living organisms obtain energy in form of ATP by breaking down food molecules in their cells.
Cellular respiration occurs in all living organisms because energy is required for their daily metabolic activities.
Therefore, the primary function of cellular respiration is to break down food molecules and generate ATP.
Learn more about cellular respiration at: brainly.com/question/13721588