Metals make up most of the Periodic Table of Elements.
Water is more than 70 percent of the body's tissues.
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.
70 percent ethanol is more effective at killing microbes than 100 percent ethanol. This is because the addition of water helps to denature proteins and disrupt cell membranes in the microbes, leading to better penetration and more efficient sterilization. Additionally, 70 percent ethanol is less volatile and evaporates more slowly, allowing for longer contact time with the microbes.
70 percent alcohol is used in laboratories because it has a higher penetrative power than higher concentrations, allowing it to effectively disrupt the cell walls of microorganisms. It also evaporates more slowly than higher concentrations, providing more contact time for disinfection. Additionally, 70 percent alcohol is less flammable and less likely to damage surfaces compared to higher concentrations.
Nitrogen is the gas that makes up about 78% of the Earth's atmosphere.
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
More than 50 percent.
70% of a humans body is made of water.
tress
more than 70%
helium
Nitrogen