Explanation:
Look for keywords in question
not having enough resources
this goes under <em>scarcity</em>... the condition that results from society not having enough resources to produce all of the things people would like to have...
(population is amount of people, animals, that type of thing)
(scarcity means lack of, not having enough)
(surplus means having more than needed, extra)
(plague means bacterial outbreak, cause continual trouble or distress to)
lmk if this helps XD