Answer:
The answer is "failing to keep a proper lookout".
Explanation:
The theory of collision, especially concerning gas were used to forecast the chemical reaction. It is based on the idea which atoms or molecules of interacting organisms should be mixed or collided. In this question the key cause of collision would be a proper viewpoint is not established, that's why other given choices were wrong.
Answer:
true
Explanation:
because it needs a interpreter so that it could be more developed
