purification of water
formation of soil
sterilization of soil
degradation of soil
B. formation of soil
CO
Hydrocarbons
purification of water
formation of soil
sterilization of soil
degradation of soil
Lichens
Algae
Fungus
Fems
frequent cyclones
rainfall
frequent landslides
erosion of soil surface
Botanical Survey of India - Calcutta
St. Xavier's Herbarium - Mumbai
Central National Herbarium - Calcutta
IARI - New Delhi
Marine
Freshwater
Grassland
Pond
A community of organisms interacting with one another
The abiotic component of a habitat
The part of the earth and its atmosphere which inhabits living organisms
The community of organisms together with environment in which they live
Typha latifolia
Cyperus rotundus
Parthenium
Eichhornia
Succulents
Heterophyllous
Herbaceous
Viviparous
green plants systhesize food
the green plants eat everything
they are fixed at a place
none of these
Darwin's birthday
World hygiene day
World environment day
World population day
Bharatpur
Kaziranga
Silent Valley
Gir
Adaptation
Acclimatisation
Colonisation
All the above
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
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
when both organisms are benefited
when one organism is benefited without affecting the other
when one organism is affected
when both organisms are affected
Kashmir
Kerala
Africa
America
excessive so2 in their air
excessive ammonia in the air
low temperature
high temperature
grass � wolf > deer > buffalo
bacteria � grass � rabbit > wolf
grass � insect � bird � snake
grass > snake �insect � deer
suspended hydrophyte
submerged hydrophyte
floating and anchored plant
a free floating hydrophyte
Solar energy
Hydro-power
Natural gas
All of these
upright
inverted
upright or inverted
none of these
decomposition of animals and plants by bacteria
photosynthesis by green plants
fermentation of sugars
sun-light
Taiga ecosystem
Tundra ecosystem
Savannah ecosystem
Tropical rainforest
Himachal Pradesh
Haryana
Tamil Nadu
Assam
natural geochemical cycles
the natural flora of a place
the natural wild life of a region
the natural balance of our environment
Diatoms
Lichens
Mosses
Ferns
a food chain
genetic drift
ecological succession trend
a phylogenetic trend
In which individuals interact with each other
In which life originated
The name of a bird
Organic compound by which life diminih
parasitic food chain
consumer food chain
detritus food chain
predator food chain