Meaning: 'Flashed' means to emit a sudden burst of light or to appear briefly and suddenly.

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.
• reveal: The verb 'reveal' is also in the present tense and does not match the past context required here.
• transmitted: The verb 'transmitted' is in the past tense but does not relate to the action of a lightning bolt.

Correct answer: detailed

Explanation: The term 'detailed' is an adjective that describes the recordings made by the telescopes, fitting grammatically as it modifies the noun 'recordings.'

Meaning: 'Detailed' means having many details or being thorough in description.

Wrong options:

• receives: The verb 'receives' does not fit as it does not describe the nature of the recordings.
• flashed: The verb 'flashed' does not describe the recordings and is not an appropriate adjective.
• prove: The verb 'prove' does not relate to the recordings and does not fit grammatically.
• reveal: The verb 'reveal' does not modify 'recordings' and is not suitable in this context.
• transmitted: The verb 'transmitted' does not describe the recordings and is not an appropriate adjective.

Correct answer: reveal

Explanation: The verb 'reveal' fits grammatically as it describes what the recordings do, maintaining the present tense to indicate an ongoing action related to the findings.

Meaning: 'Reveal' means to make something known or visible that was previously hidden.

Wrong options:

• receives: The verb 'receives' does not fit as it does not describe the action of the recordings in this context.
• flashed: The verb 'flashed' does not relate to the action of the recordings and is not appropriate here.
• prove: The verb 'prove' does not accurately describe what the recordings do in this context.
• 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 and is not suitable.

Correct answer: triggers

Explanation: The word 'triggers' is a verb that fits grammatically as it describes what causes lightning, aligning with the context of the sentence discussing the process of lightning formation.

Meaning: 'Triggers' means to cause something to happen or to initiate a process.

Wrong options:

• receives: The verb 'receives' does not relate to the cause of lightning and does not fit grammatically.
• flashed: The verb 'flashed' does not describe a cause and is not appropriate in this context.
• prove: The verb 'prove' does not accurately describe what causes lightning and does not fit the context.
• detailed: The word 'detailed' is an adjective and does not fit as a verb in this context.
• transmitted: The verb 'transmitted' does not relate to the cause of lightning and is not suitable.