Since a pure substance is matter that has a fixed chemical composition, 10 points are elements and compounds considered pure substances? *
Yes
Or no

I would think that the answer would be Yes but I haven't studied much in this subject :)

Sorry if im wrong I tried my best ;)

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.

dont trust me im no expert these losers made me fail a test bro this sucks

step-by-step explanation: