3. What information does a compound's empirical formula give us? A) The elements that are involved, and in which ratio they have combined

B) The exact number of atoms of each element that have combined

C) B only

D) A and B​

A

Step-by-step explanation:

empirical formulas are the simplest form of notation so they provide the lowest whole number ratio between the elements in a compound

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.