Meaning: 'Flashed' means to emit a sudden burst of light, which is appropriate for describing a lightning bolt.

Wrong options:

• receives: The verb 'receives' is in the present tense and does not fit the past context of the sentence.
• prove: The verb 'prove' does not relate to the action of a lightning bolt and is not in the correct tense.
• detailed: The word 'detailed' is an adjective and does not fit as a verb in this context.
• transmitted: The verb 'transmitted' is in the past tense but does not relate to the action of a lightning bolt.
• reveal: The verb 'reveal' is in the present tense and does not fit the past context of the sentence.
• triggers: The verb 'triggers' is in the present tense and does not fit the past context of the sentence.

Correct answer: detailed

Explanation: The word 'detailed' is an adjective that describes the recordings made by the telescopes. It fits grammatically as it modifies the noun 'recordings' and provides context about their quality.

Meaning: 'Detailed' means having many details or being thorough, which is appropriate for describing the recordings.

Wrong options:

• receives: The verb 'receives' does not fit as it does not describe the quality of the recordings.
• flashed: The word 'flashed' is a verb and does not function as an adjective to describe 'recordings.'
• transmitted: The verb 'transmitted' does not describe the quality of the recordings and is not appropriate here.
• reveal: The verb 'reveal' does not fit as it does not describe the recordings themselves.
• triggers: The word 'triggers' is a verb and does not describe the recordings, making it inappropriate in this context.
• prove: The verb 'prove' does not relate to the quality of the recordings.

Correct answer: reveal

Explanation: The word 'reveal' is a verb that fits grammatically in the present tense, indicating what the recordings do. It aligns with the context of the sentence, which discusses the findings from the recordings.

Meaning: 'Reveal' means to make something known or visible, which is appropriate for the context of the findings from the recordings.

Wrong options:

• receives: The verb 'receives' does not fit as it does not describe what the recordings do in this context.
• flashed: The word 'flashed' is a past tense verb that does not relate to the action of the recordings.
• detailed: The word 'detailed' is an adjective and does not fit as a verb in this context.
• transmitted: The verb 'transmitted' does not describe the action of the recordings revealing information.
• triggers: The verb 'triggers' does not fit as it does not describe the action of the recordings in this context.
• prove: The verb 'prove' does not relate to the action of the recordings revealing findings.

Correct answer: triggers

Explanation: The word 'triggers' is a verb that fits grammatically in the present tense, indicating what causes lightning. It aligns with the context of the sentence, which discusses the cause of lightning.

Meaning: 'Triggers' means to cause something to happen, which is appropriate for describing what initiates lightning.

Wrong options:

• receives: The verb 'receives' does not fit as it does not relate to the cause of lightning.
• flashed: The word 'flashed' is a past tense verb that does not relate to the cause of lightning.
• detailed: The word 'detailed' is an adjective and does not fit as a verb in this context.
• transmitted: The verb 'transmitted' does not describe the cause of lightning and is not appropriate here.
• reveal: The verb 'reveal' does not fit as it does not describe the cause of lightning.
• prove: The verb 'prove' does not relate to the action of triggering lightning.