Water is more than 70 percent of the body's tissues.
Nitrogen gas (N2) makes up 79% of air (so more than 70%).
First of all, because technological limits mean that we can only get alcohol at a purity of about 90%. 90% alcohol is also far more expensive than 70%, so it is more cost effective to use 70%. Ignoring all of that, the main reason is that 70% alcohol works just fine and sterilizes object very well.70%alcohol is the efficient concentration to denature the protein.
because the 100% alcohol is inhibited the protein synthesis but can not reach at the nucleic acid and it create an protective layer out side the cell membrane but 70% alcohol is more aqueous than the 100% alcohol and reaches easily in the whole cell and inhibited the protein synthesis the cell may lead to died thats why only 70%alcohol is used as chemical disinfectant....
These elements are the lanthanides; see the link below for some details.
70 + 3% of 70 = 70*1.03 = 72.1
More than 70 percent of French electricity is produced in nuclear plants.
Water is more than 70 percent of the body's tissues.
Earth
what percentage of marrages last more than 70 years
45% is greater than 30/70
70% of a humans body is made of water.
helium
tress
Nitrogen
more than 70%
not more than 15