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What is divided into pieces called tectonic plates?

It is made up of two parts, the crust and the rigid upper part of the mantle. The lithosphere is divided into pieces called TECTONIC PLATES. ASTHENOSPHERE is: A soft layer of the mantle on which pieces of the lithosphere move.

Why is mantle made of silicate rocks?

Over millions of years, the mantle cooled. Water trapped inside minerals erupted with lava, a process called “outgassing.” As more water was outgassed, the mantle solidified. The rocks that make up Earth’s mantle are mostly silicates—a wide variety of compounds that share a silicon and oxygen structure.১১ আগস্ট, ২০১৫

Why is Earth’s core made of iron?

A. The iron-nickel alloy that composes the inner core is heavier than other elements in the mantle and outer core, causing it to sink to the center of earth. Since both iron and nickel and attracted to magnets earth’s magnetic field drew the to metals into the inner core mixing them into the alloy.

Is iron part of Earth?

Iron is a brittle, hard substance, classified as a metal in Group 8 on the Periodic Table of the Elements. Iron is also the fourth most common element in Earth’s crust by weight and much of Earth’s core is thought to be composed of iron.২৩ আগস্ট, ২০১৭

Which country is the center of the universe?

Space Flight Operations Facility, the operations control center of the NASA Deep Space Network. Tanegashima Space Center, the main spaceport of Japan. The interpretive centre at the Dominion Astrophysical Observatory in Saanich, British Columbia is named The Centre of the Universe.

Which city is the Centre of India?


Which district is Centre of Tamil Nadu?


Which is richest city in Tamilnadu?

Chennai is the capital city of Tamil Nadu and sits by the Bay of Bengal. Given its glorious history and its significance as Madras Presidency during the British rule, Chennai is historically and culturally rich and diverse, attracting tourism in turn. Besides being a pioneer in art, culture, and music.২৯ সেপ্টেম্বর, ২০২০