Question

What are tectonic plates?
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Answer 1

Plate tectonics is a scientific theory describing the large-scale motion of seven large plates and the movements of a larger number of smaller plates of Earth's lithosphere, since tectonic processes began on Earth between 3 billion years ago

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Answer 2

Pʟᴀᴛᴇ ᴛᴇᴄᴛᴏɴɪᴄs ɪs ᴀ sᴄɪᴇɴᴛɪғɪᴄ ᴛʜᴇᴏʀʏ ᴅᴇsᴄʀɪʙɪɴɢ ᴛʜᴇ ʟᴀʀɢᴇ-sᴄᴀʟᴇ ᴍᴏᴛɪᴏɴ ᴏғ sᴇᴠᴇɴ ʟᴀʀɢᴇ ᴘʟᴀᴛᴇs ᴀɴᴅ ᴛʜᴇ ᴍᴏᴠᴇᴍᴇɴᴛs ᴏғ ᴀ ʟᴀʀɢᴇʀ ɴᴜᴍʙᴇʀ ᴏғ sᴍᴀʟʟᴇʀ ᴘʟᴀᴛᴇs ᴏғ Eᴀʀᴛʜ's ʟɪᴛʜᴏsᴘʜᴇʀᴇ, sɪɴᴄᴇ ᴛᴇᴄᴛᴏɴɪᴄ ᴘʀᴏᴄᴇssᴇs ʙᴇɢᴀɴ ᴏɴ Eᴀʀᴛʜ ʙᴇᴛᴡᴇᴇɴ 3.3 ᴀɴᴅ 3.5 ʙɪʟʟɪᴏɴ ʏᴇᴀʀs ᴀɢᴏ.

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