Regarding Earths composition, it would not be true to say which one of the following? I. The crust is composed of heterogenous rocks. II. The central nucleus is fluid. III. Below the crust the material is wholly solid,

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Q: 69 (CDS-I/2004)
Regarding Earths composition, it would not be true to say which one of the following?
I. The crust is composed of heterogenous rocks.
II. The central nucleus is fluid.
III. Below the crust the material is wholly solid,

question_subject: 

Geography

question_exam: 

CDS-I

stats: 

0,12,31,10,12,15,6

keywords: 

{'earths composition': [0, 0, 1, 0], 'crust': [1, 1, 0, 0], 'central nucleus': [0, 0, 1, 0], 'material': [0, 0, 0, 1]}

Option 1 states that the Earth`s crust is composed of heterogeneous rocks. This means that the rocks in the crust are different in composition and characteristics. This statement is generally true. The Earth`s crust is made up of several types of rocks, such as igneous, sedimentary, and metamorphic rocks, which have different origins and properties.

Option 2 states that the central nucleus of the Earth is fluid. This statement is incorrect. The central nucleus, also known as the Earth`s core, is not fluid but rather solid. The Earth`s core is primarily composed of iron and nickel.

Option 3 states that below the crust, the material is wholly solid. This statement is generally true. Below the Earth`s crust lies the mantle, which is primarily made up of solid rock. The mantle is the thickest layer of the Earth and extends down to the Earth`s core.

Option 4 states that only option III is not true. This statement is incorrect because option III is true. The material below the Earth`s crust is indeed wholly solid.

In conclusion, the correct answer is option 2, as it incorrectly states that the central nucleus is fluid. Alert - the correct answer should be "Only I" because option 1 is not true.