Scientists have recently found that the inner core of earth is uline{1cm} than previously thought.

2018

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Scientists have recently found that the inner core of earth is _________ than previously thought.

A	softer
B	harder
C	hotter
D	colder

Explanation:

Detailed explanation-1: -Scientists have discovered evidence that the Earth’s inner core oscillates, contradicting previously held beliefs that it consistently rotates at a faster rate than the planet’s surface.

Detailed explanation-2: -Scientists have long thought that our planet’s inner core, located 3, 200 miles beneath the Earth’s surface, was solid – in contrast to the liquid metal region surrounding it.

Detailed explanation-3: -USC scientists have found evidence that the Earth’s inner core oscillates, contradicting previously accepted models that suggested it consistently rotates at a faster rate than the planet’s surface.

Detailed explanation-4: -The inner core is the most metal place on Earth-even more so than the outer core. Both are made mostly of iron, along with a smattering of nickel. But the iron is thought to also contain traces of lighter elements like oxygen, carbon, and silicon.

Detailed explanation-5: -For decades, scientists have studied the behavior of Earth’s inner core, a solid iron ball at the heart of our planet that spans about 1, 500 miles wide-nearly 70 percent of the moon’s size.

There is 1 question to complete.