Crises
a situation or time that is very dangerous or difficult

Shortage
LACK,DEFICIT

Citation 
words or lines taken from a book or a speech

Scarcity a situation in which there is not enough of something 

Link
Scarcity. Cambridge Dictionary. (n.d.). Retrieved April 11, 2023, from https://dictionary.cambridge.org/dictionary/english-arabic/scarcity?q=Scarcity 

Oxford Learner's dictionaries: Find definitions, translations, and grammar explanations at Oxford Learner's dictionaries. Oxford Learner's Dictionaries | Find definitions, translations, and grammar explanations at Oxford Learner's Dictionaries. (n.d.). Retrieved April 11, 2023, from https://www.oxfordlearnersdictionaries.com/ 

Crisis. Cambridge Dictionary. (n.d.). Retrieved April 11, 2023, from https://dictionary.cambridge.org/dictionary/english-arabic/crisis?q=Crises 

Merriam-Webster. (n.d.). Shortage definition & meaning. Merriam-Webster. Retrieved April 13, 2023, from https://www.merriam-webster.com/dictionary/shortage