Answer: Srilankans use two main languages, Sinhala and Tamil both being the official languages.
It helped them transport things easier i think
The tiny invaders being discussed in the article are plants. They are considered invaders because they came from other countries, but are now threatening the native plants. People brought them in because they wanted to make their gardens and yards beautiful because the plants are very rarely found locally.
The correct answer is "Parents refused to care for their dying children".
The situation to which the narrator is referring to as "even worse, and almost incredible" during the plage, is that parents were abandoning their suffering children. <u>This is what he found to be the most poignant and striking image that conveyed the extent of the horrors brought by the plague</u>. Mothers and fathers refused to care for their dying children or even visit them in innumerable cases.
Hope this helps!