Question

define sheild in short
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Answer 1

Answer:

A shield is a large area of exposed Precambrian crystalline igneous and high-grade metamorphic rocks that form tectonically stable areas. These rocks are older than 570 million years and sometimes date back 2 to 3.5 billion years. ... Shields occur on all continents.

hope this helps u

Answer 2

Explanation:

something or someone that protects or defends