Environment Quiz
Preview:
Match the following Picture (representation) to the Correct Symbiotic Relationship by drawing a line from the word to the picture that matches the relationship
A. A-A, B-A,C-B
B. A-B, B-C,C-C
C. A-C, B-B, C-A
D. A-C, B-B, C-C
In plants, respiration occurs
A. During the day only
B. During the night only
C. During day and night
D. Only when photosynthesis does not take place
Rhizospheres affect microbial population and nutrient availability by:
A. Exerting physical pressure
B. Increasing pore space
C. Secreting nutritive metabolites and organic solvents
D. Changing soil structure
The green plants are called
A. Producers
B. Consumers
C. Decomposers
D. None of these
Which of these activities is eco-friendly?
A. Cars for transportation
B. Polybags for shopping
C. Windmills for generating power
D. Dyes for colouring clothes
Neutralism occurs
A. When populations are in their favourable environment
B. In habitats with high population density
C. When organisms are in their growing stage.
D. Between microbial populations in a community with extremely different metabolic characteristics.
———is the type of endosymbiosis.
A. Cooperation
B. Commensalisms
C. Mutualism
D. Predation
How many tiger reserves are present in Karnataka
A. 50
B. 27
C. 8
D. 6
Rhizohium culture is used to increase biological nitrogen fixation in….
A. Cereals crops
B. Pulse crops
C. Cotton
D. Oilseeds
———-is the obligatory interaction.
A. Mutualism
B. Commensalism
C. Ammensalism
D. Cooperation
The ultimate source of energy in an ecosystem is the
A. producers
B. Consumers
C. Sun
D. Decomposers
Rhizobia infect the host legumes through:
A. Cortex cells
B. Epidermal cells
C. Root hairs
D. All of the above
What is the full form of BOD?
A. Bactorial oxygen demand
B. Biological oxygen demand
C. Biological oxide demand
D. None of these
The fungal mycelium in Mycorrhizae penetrates the root cells by means of projections called———
A. Hausteria
B. Arbuscules
C. Absorbing organ
D. None
Biofertilizer is a:
A. Mixture of organic matter and microorganism
B. Culture having the desired strain of microorganisms
C. Mixture of inorganic fertilizer and microorganism
D. Decomposed compost enriched with mineral solubilising bacteria