In this question I was able to eliminate all options except C and E.
Can someone help me eliminate one of the option here?
In this question I was able to eliminate all options except C and E.
Can you tell how did you eliminate the options? (Always better to describe a little more on what is your thought process so that anyone can correct at which step you’re making a mistake).
Anyways here is how I approach it :
The main theme of the passage is the development of scientific understanding since 1953 of how life began on Earth. This theme is inferred from the first sentence of the passage, which states that “Since 1953, many experimental attempts to synthesize the chemical constituents of life under ‘primitive Earth conditions’ have been performed,” and from the rest of the passage, which describes the conclusions drawn from these studies and the hypotheses that have been proposed to explain the development of life on Earth.
A. Incorrect. The passage does not discuss how theories have changed since 1953. Instead, it describes the experimental attempts to synthesize the chemical constituents of life under ‘primitive Earth conditions’ and the conclusions drawn from these studies.
B. Incorrect. The passage does not warn about increasing levels of hydrogen, methane, and ammonia in the Earth’s atmosphere. Instead, it discusses how some scientists postulate that the Earth’s earliest atmosphere was dominated by these gases.
C. Correct. The passage describes the development since 1953 of some scientists’ understanding of how life began on Earth. It discusses the experimental attempts to synthesize the chemical constituents of life and the conclusions drawn from these studies.
D. Incorrect. The passage does not demonstrate that the synthesis of life in the laboratory is too difficult for modern technology. Instead, it discusses how a variety of complex molecules could have been present in the early ocean and atmosphere.
E. Incorrect. The passage does not describe how primitive atmospheric conditions produced the complex molecules of living organisms. Instead, it discusses how a variety of complex molecules could have been present in the early ocean and atmosphere.