Question

what do lightning and stars have in common?
both have no electrical charge
both contain plasma
both have a fixed volume
both contain all three states of matter

Explanation:

• Analyze Option 1: Lightning involves electrical discharge (has charge), stars also have charged particles. So "Both have no electrical charge" is wrong.
• Analyze Option 2: Lightning is a form of plasma (ionized gas from electrical discharge), stars are mostly plasma (hot, ionized gas). So this option is correct.
• Analyze Option 3: Lightning is a transient electrical phenomenon (no fixed volume), stars are gaseous/plasma - no fixed volume like solids/liquids. So "Both have a fixed volume" is wrong.
• Analyze Option 4: Lightning is mainly plasma (ionized gas), stars are mainly plasma. They don't contain all three states of matter. So this option is wrong.

Answer:

B. Both contain plasma