Geologists use radioactive dating

a. determine the relative age of rock layers

b. tell the difference between molds and casts.

c. tell where one soil horizon ends and the next one begins.

d. determine the absolute age of rocks.

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.

Kim jong un.yeet jkany leaking in the power plant can directly cause radiation and other bio hazards.brainliest answer pls.

The population of unionid mussels decreased after zebra mussels were introduced. zebra mussels competed with the unionid mussels for food. the zebra mussels were able to displace the unionid mussels, allowing the zebra mussel population to increase  over the years. the unionid mussel population decreased because  of lack of food.

H tricky one let me think and get back to u