Sufficient food will not be available to water organisms
Sufficient oxygen will not be available to water organisms
Drinking water will not be available
B.O.D value of water will decrease
Forest prevent soil erosion
Forests act as water sheds
Forests have lots of water plants
Forests bring rainfall, in monsoon
producer - consumer - decomposer
decomposer - consumer - producer
producer - decomposer - consumer
consumer - producer - decomposer
leukaemia
polio
pneumonia
haemophilia
frequent cyclones
rainfall
frequent landslides
erosion of soil surface
soil structure
organic colloids
crystalloids
none of the above
Tropical regions
Deserts
Temperate deciduous plants
Deserts
A food chain is a chain of food consumers
A food chain is chain of food producers
A food chain is a series of organisms through which food energy flows in an ecosystem
None of the above
green plants systhesize food
the green plants eat everything
they are fixed at a place
none of these
Solar energy
Hydro-power
Natural gas
All of these
encouragement of growth of microbes to decompose sewage
disinfection of sewage
removal of heavy grit from sewage in the settling chambers
pumping of sewage into aeration tanks for increased microbial activity
parasitic food chain
consumer food chain
detritus food chain
predator food chain
Nitrogen
Carbon
Phospnorus
Oxygen
suspended hydrophyte
submerged hydrophyte
floating and anchored plant
a free floating hydrophyte
halophytic
mesophytic
xerophytic
hydrophytic
Marine
Freshwater
Grassland
Pond
upright
inverted
upright or inverted
none of these
Botanical Survey of India - Calcutta
St. Xavier's Herbarium - Mumbai
Central National Herbarium - Calcutta
IARI - New Delhi
when both organisms are benefited
when one organism is benefited without affecting the other
when one organism is affected
when both organisms are affected
grass � wolf > deer > buffalo
bacteria � grass � rabbit > wolf
grass � insect � bird � snake
grass > snake �insect � deer
Diatoms
Lichens
Mosses
Ferns
sand-silt and clay
silt-sand and clay
clay-sand and silt
clay-silt and sand
Taiga ecosystem
Tundra ecosystem
Savannah ecosystem
Tropical rainforest
Darwin's birthday
World hygiene day
World environment day
World population day
Himachal Pradesh
Haryana
Tamil Nadu
Assam
Bharatpur
Kaziranga
Silent Valley
Gir
Adaptation
Acclimatisation
Colonisation
All the above
a well developed root system
a well developed vascular system
a well developed stomatal system
a reduced vascular system
Protozoa
Oxygen produced by plants
Sunlight
Manure in the soil
Typha latifolia
Cyperus rotundus
Parthenium
Eichhornia