Consider the following:
1. Birds
2. Dust blowing
3. Rain
4. Wind blowing
Which of the above spread plant diseases?
1
1 and 3 only
2
3 and 4 only
3
1, 2 and 4 only
4
1, 2, 3 and 4
Consider the following:
1. Birds
2. Dust blowing
3. Rain
4. Wind blowing
Which of the above spread plant diseases?