Answer:
Small sparks can lead to huge explosion if they are left unattended.
Explanation:
Small sparks are not harmful but if these sparks happen near some hazardous material or object then it could lead to heavy explosion. If there is some chemical substance near the spark or there are magnetic lines which can explode the spark then these minor sparks could result in heavy disastrous explosion.
What are the options so that I can help.
B, air blowing from across the field is as a bullet fired from a rifle
1, 2 and 4 apply. im not sure that 2 ALWAYS applies though.