Which statement is true about radiocarbon dating? after it dies, an organism’s body continues to intake c-14. radiocarbon dating is useful for dating objects up to 100,000 years old. radiocarbon dating assumes that half-life for radioisotopes change over time. the half-life of c-14 is 5,730 years.

Answer : The correct statement is The half-life of C-14 is 5,730 years.

Explanation :

The statement "After it dies, an organism’s body continues to intake C-14." is not correct because after an organism dies, its body stops taking C-14. Instead the already absorbed C-14 starts decaying into N-14.

The statement "Radiocarbon dating is useful for dating objects up to 100,000 years old." is not correct because Radiocarbon dating technique is useful for dating object up to 50000 years, because after that it completely breaks down. Objects older than that are evaluated using Absolute Dating technique.

The statement "Radiocarbon dating assumes that half-life for radioisotopes change over time. " is also not correct because half life of radioisotopes does not change, but remains constant

Therefore the statement that is true is "The half-life of C-14 is 5,730 years." which gives the correct half life for C-14 isotope

D

Explanation:

answer; economic order quantity;

the best answer is d because the strong cohesion is caused by the ability of water molecules to undergo hydrogen bonding.

a is incorrect because when water solidifies, it becomes   ice, which expands and occupies a bigger volume for the same mass of water in its liquid state.

b is incorrect because water has high surface tension. besides bonding to itself it hydrogen bonds to other molecules at the top decreasing possibility for breaking of attractive forces.

c is incorrect because the water molecule has oxygen which is highly electronegative and so pulls the electron pair towards itself creating a dipole moment, making the molecule polar.

e is incorrect because water has strong adhesion, ability to stick to other molecules such as glass because of this molecules having stronger hydrogen bonding than water.