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

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UPSC Question: Consider the following:...

Environment and Ecology

2018

Ecology & Ecosystems

Environmental Pollution

UPSC Practice Question

Consider the following:

Which of the above spread plant diseases?

A.1 and 3 only

C.1,2 and 4 only

B.3 and 4 only

D.1, 2, 3 and 4