D) The propotion of humus is negligble. soil
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- Šɪɴᴄᴇ ʜᴜᴍᴜꜱ ᴄᴏᴍᴘʀɪꜱᴇꜱ 60–80% ᴏꜰ ᴛʜᴇ ᴛᴏᴛᴀʟ ꜱᴏɪʟ ᴏʀɢᴀɴɪᴄ ᴍᴀᴛᴛᴇʀ ᴀɴᴅ ʜᴀꜱ ᴀ ʀᴇʟᴀᴛɪᴠᴇʟʏ ʜɪɢʜ ɴɪᴛʀᴏɢᴇɴ ᴄᴏɴᴛᴇɴᴛ, ɪᴛ ᴄᴏɴꜱᴛɪᴛᴜᴛᴇꜱ ᴀ ʟᴀʀɢᴇ ʀᴇꜱᴇʀᴠᴏɪʀ ᴏꜰ ɴɪᴛʀᴏɢᴇɴ ɪɴ ᴍᴏꜱᴛ ᴇᴄᴏꜱʏꜱᴛᴇᴍꜱ.
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