News9: What are gallstones? Causes, warning signs, and when to see a doctor What are gallstones? Causes, warning signs, and when to see a doctor Calculous cholecystitis is a gallbladder inflammation that occurs due to the presence of gallstones (cholelithiasis).

Understanding the Context

These gallstones can block the cystic duct, the channel through which bile flows ... In both situations there is a lack of resources which causes people to die. This sentence should be read as follows: there's a lack of some resources, and it is this lack that's causing deaths. In effect, without those resources people die; the resources help avoid death.

Key Insights

Unfortunately, there's a lack of those resources. This sentence makes sense, and is what you probably want to write. grammar - When should I use "cause" and "causes"? - English Language ... Or: Is this the only factor that causes such tragedies?

Final Thoughts

In that form, the singular factor matches with the verb causes. Your sentence mixes the plural rooms with the singular factor, making it hard for you to figure out which form the verb cause (s) should take. (This isn’t necessarily ungrammatical, but sometimes this can make a sentence ... What causes coral bleaching ? What does cause coral bleaching ? What is the difference??

Which is grammatically correct? word choice - What causes X or What does cause X? - English Language ...