Task: Question Answering
Input (English): Process:  -There is a rain cloud in the sky -Small bits of ice within the cloud bump each other -The collisions create electrical charge -Lighter, positively charged particles sink to the bottom of the cloud -Heavier, negatively charges particles rise to the top -When the positive and negative charges grow large enough, a giant spark, called lightning occurs -
 Question: What is the effect of more oxygen in the air on less or less powerful lightning.?
Output (English): none