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.

Understanding the Context

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 ...

Key Insights

Or: Is this the only factor that causes such tragedies? 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 ... ripple effect: a situation in which one thing causes a series of other things to happen So you could word your sentence like this: A mismatch has a ripple effect: the current edge should be fixed with respect to the previously-fixed edge, which will need to be reaffixed to the edge before that, etc.

Final Thoughts

Yet another phrase you might use is chain ... There is disagreement as to the causes of the fire. I remained uncertain as to the value of his suggestions. (2. meaning) according to, by. Example - The eggs are graded as to size and color.

As you have learned about the individual meanings of as to and as for, it's advisable to please go through the following usage notes. The drug causes an adverse reaction in patients with a history of heart disease. So why "make" not "cause"? As Robusto says in the above comment, "make" just sounds less forceful and somewhat nicer.