Question 50

Lightning consists of a main stroke and several smaller strokes.

Lightning is actually a series of multiple events that includes a leader stroke followed by as many as 40 smaller strokes. This phenomenon illustrates that lightning is not a singular event but a complex interaction of electrical charges.

A) Always consists of a single stroke

This option is incorrect as the extract clearly explains that lightning comprises a leader stroke followed by multiple smaller strokes. Therefore, the concept of lightning being a single stroke does not align with the scientific explanation provided.

B) Is harmless and does not pose any risk

This choice is also incorrect. The extract notes that lightning causes injuries, deaths, and forest fires each year, highlighting the risks associated with lightning strikes. Thus, it is misleading to suggest that lightning is harmless.

C) Consists of a main stroke and several smaller strokes

This option is correct because the extract explicitly states that lightning includes a leader stroke followed by numerous smaller strokes, confirming that lightning is a complex event rather than a single instance.

D) Only occurs during thunderstorms

This option is misleading. While lightning is commonly associated with thunderstorms, the extract does not state that it is exclusive to them. Therefore, this option lacks sufficient support from the provided information.

Conclusion

The correct answer, C, is supported by the detailed explanation in the extract regarding the nature of lightning, emphasizing its complexity and the multiple strokes involved. In contrast, options A, B, and D fail to accurately reflect the information presented, demonstrating a misunderstanding of the phenomena associated with lightning.