Question

What are tectonic plates?​

Answer 1

Answer:

Plate tectonics is a scientific theory describing the large-scale motion of the plates making up the Earth's lithosphere since tectonic processes began on Earth between 3.3 and 3.5 billion years ago. The model builds on the concept of continental drift, an idea developed during the first decades of the 20th century

Answer 2

Answer:

ᴛᴇᴄᴛᴏɴɪᴄ ᴘʟᴀᴛᴇs ᴀʀᴇ ᴘɪᴇᴄᴇs ᴏғ ᴇᴀʀᴛʜ's ᴄʀᴜsᴛ ᴀɴᴅ ᴜᴘᴘᴇʀᴍᴏsᴛ ᴍᴀɴᴛʟᴇ, ᴛᴏɢᴇᴛʜᴇʀ ʀᴇғᴇʀʀᴇᴅ ᴛᴏ ᴀs ᴛʜᴇ ʟɪᴛʜᴏsᴘʜᴇʀᴇ. ᴛʜᴇ ᴘʟᴀᴛᴇs ᴀʀᴇ ᴀʀᴏᴜɴᴅ 100 ᴋᴍ (62 ᴍɪ) ᴛʜɪᴄᴋ ᴀɴᴅ ᴄᴏɴsɪsᴛ ᴏғ ᴛᴡᴏ ᴘʀɪɴᴄɪᴘᴀʟ ᴛʏᴘᴇs ᴏғ ᴍᴀᴛᴇʀɪᴀʟ: ᴏᴄᴇᴀɴɪᴄ ᴄʀᴜsᴛ (ᴀʟsᴏ ᴄᴀʟʟᴇᴅ sɪᴍᴀ ғʀᴏᴍ sɪʟɪᴄᴏɴ ᴀɴᴅ ᴍᴀɢɴᴇsɪᴜᴍ) ᴀɴᴅ ᴄᴏɴᴛɪɴᴇɴᴛᴀʟ ᴄʀᴜsᴛ (sɪᴀʟ ғʀᴏᴍ sɪʟɪᴄᴏɴ ᴀɴᴅ ᴀʟᴜᴍɪɴɪᴜᴍ).