This is because the relative atomic mass is the sum of the no of protons and neutrons while the atomic no is of the former only. it is not a whole number it is th average weighted masses of the various isotopes of the element multiplied by their corresponding relative abundance. pls thank me and mark me briniest
what kind of object?
if its super small ex. eraser.... use centimeter
if its pretty normal size like a peice of paper...use inches
if its a bit bigger than a foot or a foot...use feet/ foot
if its way bigger than a foot..use meter...
if its bigger than a meter..use yard
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65 * 10^3 CFU's per milliliter of water.
CFU stands for a colony-forming unit. which means that cfu/g is a colony-forming unit in line with gram and CFU/ml is a colony-forming unit in step with milliliter. A colony-forming unit is where a colony of microbes grows on a petri dish, from one unmarried microbe.
Colony Forming devices are a time period from Microbiology. CFU offers an indication of the quantity of residing microorganisms in a liquid. This quantity, determined with the aid of counting the individual colonies, describes the number of cells of organisms within the water, which can be capable of multiplying.
Whilst you do plate be counted of micro organism you are making serial suspension dilution in saline buffer or any other diluent, and then you plate a sure quantity (one hundred microliters on a 9cm Petri plate) you unfold and incubate and then you definitely depend on the range of colonies shaped.
Learn more about colony-forming units here brainly.com/question/16943523
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Answer:
glasses and magnifying glass
Explanation:
the glass causes refraction