Baculoviruses have no negative effect over
(1) Plants, fish
(2) Mammals
(3) Birds, non-target insects
(4) All of these
IPM stands for
(1) Integrated Pest Management
(2) Integrated Part Messenger
(3) International Pollution Management
(4) Inter- Pesticide Management Committee
Biofertiliser are the organisms
(1) That enrich the nutrient quantity of soil
(2) That reduce the nutrient quantity of soil
(3) That enrich the nutrient quality of soil
(4) That enrich the nutrient specificity of soil
Which of the following is free living nitrogen fixer?
(1) Baculoviruses
(2) Azotobacter
(3) Rhizobium
(4) Trichoderma
Mycorrhizae is
(1) Symbiotic association of lichen with algae
(2) Symbiotic association of fungi with higher plants
(3) Symbiotic association of bacteria with plants
(4) Symbiotic association of algae with fungi
Mycorrhizal plants have the following benefits except-
(1) Phosphorus from soil by means of fungi
(2) Resistance to root borne pathogens
(3) Tolerance to salinity, drought and extreme low temperature
(4) Overall increase in plant growth and development
Which of the following is not cynobacteria?
(1) Anabaena
(2) Nostoc
(3) Oscillatoria
(4) Glomus
Which of the following adds organic matter to the soil and increase the fertility of the soil?
(1) Cyanobacteria
(2) Bacteria
(3) Yeast
(4) Glomus
Biochemical oxygen demand is
(1) Directly proportional to Biodegradable organic matter
(2) Inversely proportional to Biodegradable organic matter
(3) Depends on direction of flow
(4) Directly proportional to dissolved oxygen
Higher the biodegradable organic matter in sewage
(1) Higher the dissolved oxygen
(2) Higher the BOD
(3) Lower the number of Bacteria
(4) All of these