Generate an overlapping word between the given two sentences. When you find the overlapping words, they don't have to match exactly, e.g., "survival" and "survive" are valid overlapping words. Little words like "the" or "of" don't count! You must generate significant words which are not the stop words.
One example: Sentence1: pesticides cause pollution. 
Sentence2: pollution can harm animals.
Solution is here: pollution.
Explanation: The word "pollution" is common to Sentence1 and Sentence2. So, it's a good answer.

Now, solve this: Sentence1: if an organism becomes too hot then that organism may die. 
Sentence2: Dehydration in the hot sun is a constant danger.
Solution:
hot