Helen discovers that her friend Olivia is addicted to meth. Olivia urges Helen not to tell anyone about it. As Helen watches Olivia slip further into addiction, she wonders if she should tell campus officials in order to get help for Olivia. Helen’s situation is most clearly an example of . . .

Drug abuse.

Explanation:

Helen’s situation is most clearly an example of  Drug abuse.

A psychological disease in which a person becomes habituated in using a particular thing continuously is called addiction.

Drugs are chemical compounds which are often used to treat certain medical condition.

But these compounds are often very addictive and if a person develops an addiction towards it it causes ill effects on his mental, physical and social health. Such misuse of drugs is then called drug abuse. Drug abuse is a legal offence and a drug addict must seek for psychological and medical assistance to give up the addiction.

answer: carbon 14 can only be used to determine the age of the organisms that were once living, and igneous rocks are non living.

explanation:

carbon 14 dating is used to determine the age of the sample by estimating the amount of carbon 14 present in the sample and then comparing it with a reference standard.carbon 14 is a isotope of carbon which is radioactive and unstable. carbon 14 is assimilated by all plants and animals throughout their life from carbon dioxide. however, one the organisms die they stop this assimilation and the carbon 14 content starts to decrease.by knowing how much of carbon 14 is left in an organism after his death, one can estimate the age of the organism. the materials whose age can be estimated by carbon 14 method are the organic compounds. however, some inorganic compounds such as aragonite   shell can also be dated.however, if we consider the igneous rocks it is a non living component which never accumulated carbon 14 in it and thus, we cannot use carbon 14 dating method to estimate its age.

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.