Question

1. What is a magnetic compass used for?​

Answer 1

Explanation:

• A compass is a navigational instrument for determining direction relative to the Earth's magnetic poles. It consists of a magnetized pointer (usually marked on the North end) free to align itself with Earth's magnetic field. The compass greatly improved the safety and efficiency of travel, especially ocean travel.

Answer 2

ᴀ ᴄᴏᴍᴘᴀss ɪs ᴀ ɴᴀᴠɪɢᴀᴛɪᴏɴᴀʟ ɪɴsᴛʀᴜᴍᴇɴᴛ ғᴏʀ ᴅᴇᴛᴇʀᴍɪɴɪɴɢ ᴅɪʀᴇᴄᴛɪᴏɴ ʀᴇʟᴀᴛɪᴠᴇ ᴛᴏ ᴛʜᴇ ᴇᴀʀᴛʜ's ᴍᴀɢɴᴇᴛɪᴄ ᴘᴏʟᴇs. ɪᴛ ᴄᴏɴsɪsᴛs ᴏғ ᴀ ᴍᴀɢɴᴇᴛɪᴢᴇᴅ ᴘᴏɪɴᴛᴇʀ (ᴜsᴜᴀʟʟʏ ᴍᴀʀᴋᴇᴅ ᴏɴ ᴛʜᴇ ɴᴏʀᴛʜ ᴇɴᴅ) ғʀᴇᴇ ᴛᴏ ᴀʟɪɢɴ ɪᴛsᴇʟғ ᴡɪᴛʜ ᴇᴀʀᴛʜ's ᴍᴀɢɴᴇᴛɪᴄ ғɪᴇʟᴅ. ᴛʜᴇ ᴄᴏᴍᴘᴀss ɢʀᴇᴀᴛʟʏ ɪᴍᴘʀᴏᴠᴇᴅ ᴛʜᴇ sᴀғᴇᴛʏ ᴀɴᴅ ᴇғғɪᴄɪᴇɴᴄʏ ᴏғ ᴛʀᴀᴠᴇʟ, ᴇsᴘᴇᴄɪᴀʟʟʏ ᴏᴄᴇᴀɴ ᴛʀᴀᴠᴇʟ.