Question

who is called head of government at national / Central level​

Answer 1

「ᴀ ᴘʀᴇsɪᴅᴇɴᴛɪᴀʟ sʏsᴛᴇᴍ ɪs ᴀ ᴅᴇᴍᴏᴄʀᴀᴛɪᴄ ᴀɴᴅ ʀᴇᴘᴜʙʟɪᴄᴀɴ ɢᴏᴠᴇʀɴᴍᴇɴᴛ ɪɴ ᴡʜɪᴄʜ ᴀ ʜᴇᴀᴅ ᴏғ ɢᴏᴠᴇʀɴᴍᴇɴᴛ ʟᴇᴀᴅs ᴀɴ ᴇxᴇᴄᴜᴛɪᴠᴇ ʙʀᴀɴᴄʜ ᴛʜᴀᴛ ɪs sᴇᴘᴀʀᴀᴛᴇ ғʀᴏᴍ ᴛʜᴇ ʟᴇɢɪsʟᴀᴛɪᴠᴇ ʙʀᴀɴᴄʜ. ᴛʜɪs ʜᴇᴀᴅ ᴏғ ɢᴏᴠᴇʀɴᴍᴇɴᴛ ɪs ɪɴ ᴍᴏsᴛ ᴄᴀsᴇs ᴀʟsᴏ ᴛʜᴇ ʜᴇᴀᴅ ᴏғ sᴛᴀᴛᴇ, ᴡʜɪᴄʜ ɪs ᴄᴀʟʟᴇᴅ ᴀ ᴘʀᴇsɪᴅᴇɴᴛ.」♡

Answer 2

Explanation:

Heads of government: The head of government is either the highest or second highest official in the executive branch of a sovereign state, a federated state, or a self-governing colony, who often presides over a cabinet, a group of ministers or secretaries who lead executive departments.