Match the column A with Column – B

	Column – A (Pathogen)		Column – B (Disease)
A)	Fungus	i)	Sleeping sickness
B)	Viroid	ii)	Wheat rust
C)	Bacterium	iii)	Potato spindle tuber
D)	Protozoan	iv)	Influenza
		v)	Citrus canker

	(A)	(B)	(C)	(D)
1)	iii	iv	v	i
2)	ii	iii	v	i
3)	ii	v	iv	i
4)	iii	iv	i	ii

Wheat rust is caused by the fungus Puccinia. Viroids are infectious agents that are smaller than viruses and cause potato spindle tuber disease. Citrus canker is caused by Xanthomonas citri. Sleeping sickness is caused by a protozoan called Trypanosoma brucei.