Passage: 'Bioluminescence, the production and emission of light by living organisms, occurs widely among marine vertebrates and invertebrates, as well as in some fungi and insects such as fireflies. The chemical reaction involves a light-emitting molecule termed luciferin and an enzyme called luciferase. Unlike incandescent light bulbs, which release ninety percent of their energy as heat, bioluminescent light is cold light, losing virtually no energy to thermal radiation.' What distinguishes bioluminescent light from incandescent light according to the passage?
Answer and explanation
Correct answer: B. Bioluminescence produces cold light with almost no energy lost as thermal heat radiation
The text states bioluminescence is 'cold light, losing virtually no energy to thermal radiation', whereas incandescent bulbs lose 90% as heat.
Practise more Academic Expository Texts, Inferences, and Contextual Vocabulary.
Free questions with an explanation for every one, and full timed TOEFL ITP Indonesia mock tests.
More Academic Expository Texts, Inferences, and Contextual Vocabulary questions
- Passage: 'The migration of monarch butterflies across North America represents one of the most remarkable navigational feats in the animal k…
- In the passage above, the word 'remarkable' in line 1 is closest in meaning to...
- According to the passage, why is the monarch migration considered astonishing?
- In the passage, the word 'it' in line 5 refers to...
- Passage: 'During the Pleistocene epoch, continental ice sheets repeatedly advanced and retreated across vast swaths of North America and Eur…
- In the passage above, the word 'fluctuations' is closest in meaning to...