Help needed with these last 9 if possible please. Don't like asking this many ,but I'm almost out of time. 41. Green rule goes north.4 letters. 44. An enigma. 6 letters. 47. This is sometimes banned. 8 letters. 48. Useful for irrigation. 7&3 letters. 66. One two three four - Children's rhyme.6 letters. 67. Did Bruce grow this. 9 letters. 73. Live soil aerator. 9letters. 91. Type of firework. 8 letters. And finally 100.Truthful plant. 7 letters. Many Thanks in advance. Eric.