The residue left after methane production from cattle dung is:

1.	burnt
2.	burried in land fills
3.	used as manure
4.	used in civil construction

BOD of waste water is estimated by measuring the amount of:

(1) total inorganic matter

(2) biodegradable organic matter

(3) oxygen evolution

(4) oxygen consumption.

The free-living fungus Trichoderma can be used for:

(1) killing insects

(2) biological control of plant diseases

(3) controlling butterfly caterpillars

(4) producing antibiotics

The primary treatment of waste water involved the removal of:

(1) dissolved impurities

(2) stable substances

(3) toxic substances

(4) harmful bacteria.

Identify the incrrectly matched pair:

(1) Trichoderma harzianum -  Biocontrol

(2) Aspergillus niger  - source of citric acid

(3) Baculovirus - narrow spectrum species specific insecticides

(4) Monascus purpureus - source of cholesterol synthesizing enzyme

Identify the incorrectly matched pair 

Identify the incorrect matched pair:

(1) Trichoderma harzianum: Cyclosporin A

(2) Monascus purpureus: Statins

(3) Aspergillus niger: Citric acid

(4) Streptococcus pyogenes: Clot buster

Baculoviruses are:

Respiratory infections are caused by
1. Adenovirus
2. Retrovirus
3. Reovirus
4. Bacteria

TMV is