SCIENCE
ENVIRONMENTAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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rigid rocky outer surface of the earth
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water flowing to the center of the earth
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solid iron-nickel that is very hot and under great pressure
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ph 0-6
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Detailed explanation-1: -The inner core is a hot, dense ball of (mostly) iron. It has a radius of about 1, 220 kilometers (758 miles). Temperature in the inner core is about 5, 200° Celsius (9, 392° Fahrenheit). The pressure is nearly 3.6 million atmosphere (atm).
Detailed explanation-2: -The Core is predominantly composed of iron and nickel. Even after 4.5 billion years of cooling, the Earth’s core remains very hot. The Earth’s core is divided into two layers, a solid inner core, and a liquid outer core. The Inner Core (D) (1216 km) is solid nickle-iron alloy.
Detailed explanation-3: -The core is primarily composed of iron, with lesser amounts of nickel. Lighter elements such as sulfur, oxygen, or silicon may also be present. The core is extremely hot ( 3500° to more than 6000°C).
Detailed explanation-4: -The core of the Earth is made up mainly of iron, in an outer liquid layer and an inner solid layer.
Detailed explanation-5: -The inner core is under intense pressure, which keeps it solid despite high temperatures. Outer Core: The outer core, which is liquid, is about 1300 miles (2092 km) thick. Both the inner and outer cores consist primarily of iron and nickel and are extremely hot with temperatures ranging from 7200–9000℉ (4000–5000℃).