Question

Why are the poles at 90 degree to the equator ? Answer in about 40 words. ​

Answer 1

Answer:

Due to the curves of the earth, the upper latitude circle is much smaller in size as compared to the great circle of the equator. Also due to the axial tilt of the earth, the poles are formed opposite to the equator. The latitude grids are formed by the climatic zones.

Answer 2

Bᴜᴛ ɪғ ʟᴀᴛɪᴛᴜᴅᴇ ᴅɪᴅ ᴛʜᴇ sᴀᴍᴇ ᴛʜɪɴɢ, ᴇᴠᴇʀʏ ᴘᴏɪɴᴛ ᴏɴ ᴛʜᴇ ᴇᴀʀᴛʜ ᴡᴏᴜʟᴅ ʙᴇ ᴄᴏᴠᴇʀᴇᴅ ᴛᴡɪᴄᴇ! Sᴏ ʟᴀᴛɪᴛᴜᴅᴇ ᴏɴʟʏ ʜᴀs ᴛᴏ ᴄᴏᴠᴇʀ 180 ᴅᴇɢʀᴇᴇs, ғʀᴏᴍ ᴛʜᴇ ɴᴏʀᴛʜ ᴘᴏʟᴇ ᴛᴏ ᴛʜᴇ sᴏᴜᴛʜ ᴘᴏʟᴇ. Tᴀᴋɪɴɢ ᴛʜᴇ ᴇϙᴜᴀᴛᴏʀ ᴛᴏ ʙᴇ 0 ᴅᴇɢʀᴇᴇs, ᴛʜᴇ ɴᴏʀᴛʜ ᴘᴏʟᴇ ɪs 180/2= 90 ᴅᴇɢʀᴇᴇs N, ᴛʜᴇ sᴏᴜᴛʜ ᴘᴏʟᴇ ɪs 180/2= 90 ᴅᴇɢʀᴇᴇs S