Afossil was analyzed and determined to have a carbon-14 level that is 70 % that of living organisms. the half-life of c-14 is 5730 years. how old is the fossil?

Explanation:

Since the living organisms stop the metabolic processes when dye, the age of the fossil is equal to the time the carbon-14 isotope (C-14) has been decaying.

Since the hal-life of the radioisotopes, such as carbon-14, is constant, you know that the amount of carbon-14 remaining reduces to half each time a half-life passes, i.e:

Now, knowing that 70% or 0.7 parts are remaining you can set the equation:

Which means that 0.5156 half-life has elapses, since the fossil started forming.

Since one half-life is 5730 years, the age of the fossil is 0.5156 × 5730 years = 2,948 years, which should be rounded to three signficant figures: 2,950 years.

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.

the answer is 75.0%.