Complex sentence: Picture a poisonous grenade going off with the circumference 50 the this would be like human sent, specifically the secretion of oils so every place that is touched is contaminated with a 50 foot poison that the deer will stay away from.
Split into simpler sentences: Picture a poisonous grenade going off with the circumference of 50 feet this would be like human sent, specifically the secretion of oils so every place that is touched. This is a contaminated area with a 50 foot poison that the deer will stay away from.