Submitted by examrobotsa on Thu, 01/01/1970 - 05:30 Consider the following: 1. Birds 2. Dust blowing 3. Rain 4. Wind blowing Which of the above spread plant diseases?1 and 3 only 3 and 4 only1, 2 and 4 only1, 2, 3 and 4 stats: 0,848,216,48,48,120,848