Which part of the Earth has the abundance of nickel and iron?

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Q: (SSC/0)
Which part of the Earth has the abundance of nickel and iron?

question_subject: 

Geography

question_exam: 

SSC

stats: 

0,9,4,2,1,9,1

keywords: 

{'nickel': [1, 0, 0, 0], 'iron': [0, 0, 1, 1], 'abundance': [2, 0, 2, 4], 'earth': [0, 1, 1, 1], 'nife': [1, 0, 0, 0], 'sial': [1, 0, 0, 0]}

The correct answer is option 3, NIFE. In the Earth`s core, there is a region called the NIFE region, which is composed primarily of nickel (Ni) and iron (Fe). This region is located deep within the Earth, beneath the mantle and crust. The NIFE region is believed to be responsible for the generation of Earth`s magnetic field.

Option 1, SIAL, and option 2, SIMA, are incorrect. SIAL refers to the upper layer of the Earth`s crust, which is composed of silicon (Si) and aluminum (Al). SIMA refers to the lower layer of the Earth`s crust, which is composed of silica (SiO2) and magnesium (Mg). These layers do not generally contain significant amounts of nickel and iron.

Option 4 states that no option is correct. However, option 3, NIFE, is indeed the correct choice for the part of the Earth that has an abundance of nickel and iron.