Which section of a journal article will concisely describe the research problem, the sample, the method, and the findings

Abstract

Explanation:

The abstract is an information which gives a reader the  background information of a journal , showing the specific topic of the research, describing the research problems, and stating previous research done on the general topic, or stating that the topic  on the journal is a new research.

it further goes to show the analytical methods in the case of the  sciences and research procedures followed for the arts,highlighting findings and results and finally he significance or implications of such findings.

In general, We can say that An Abstract is a short concise summary of a journal which will further be developed in the body of the journal.  

think its caste system

explanation:

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.