Mutation would be the best answer.
Answer: Predicting the size, location, and timing of natural hazards is ... of understanding that can be used to predict natural hazards
Explanation:
Although the diagram is not provided, I have encountered it before. The region labelled "B" is a ring with two small particles on it. This ring is the electron cloud and is where the electrons move. Therefore, it is negatively charged.
Secondary since plants/animals already lived there, but got killed/driven out of the area they lived/thrived in/on.
Answer:
1. hydrogen; 2
2. it means two strands of DNA twisted around each other like a winding staircase
