Part of the Harris and Gass hypothesis about the Red Sea rift would be weakened if it could be demon...........

English ( Master) Reading Comprehension (C)

Read the passage below and answer the following questions.
Geologists Harris and Gass hypothesized that the Red Sea rift developed along the line of a suture (a splice in the Earth’s crust) formed during the late Proterozoic era, and that significant observable differences in the composition of the upper layers of rocks deposited on either side of the suture give clues to the different natures of the underlying igneous rocks.
Other geologists argued that neither the upper rock layer nor the underlying igneous rocks on the one side of the rift differ fundamentally from the corresponding layers on the other side. These geologists believe, therefore, that there is inadequate evidence to conclude that a suture underlies the rift.
In response, Harris and Gass asserted that the upper rock layers on the two sides of the rift had not been shown to be of similar age, structure, or geochemical content. Furthermore, they cited new evidence that the underlying igneous rocks on either side of the rift contain significantly different kinds of rare metals.

Part of the Harris and Gass hypothesis about the Red Sea rift would be weakened if it could be demonstrated that the composition of upper rock layers

Cannot cause a suture to developneed to update

Has no effect on where a suture will occur

Cannot provide information about the nature of underlying rocks

Is similar on the two sides of a rift unless a suture divides the two sides

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Explanation:

- The geologists Harris and Gass suggest the Red Sea rift developed along an ancient suture, identified by differences in the upper rock layers. They argue that varied rock compositions on each side signal differences in underlying igneous rocks.

- Other geologists disagree, saying no significant differences exist, thus challenging the idea of a hidden suture.

- Harris and Gass counter this by providing evidence of differing rare metals in underlying rocks.

- Option 1 (Cannot cause a suture to develop): Irrelevant as it’s about formation causes, not composition evidence.

- Option 2 (Has no effect on where a suture will occur): Similar irrelevance about cause, not composition.

- Option 3 (Cannot provide information about the nature of underlying rocks): Weakens Harris and Gass's hypothesis as their argument relies on surface composition indicating underlying differences.

- Option 4 (Is similar on the two sides of a rift unless a suture divides the two sides): Does the opposite, potentially supporting Harris and Gass's stance.

- Correct Answer: Option 3