. Biome is
the flora on land
the flora in ocean
a community of organisms interacting with each other
that part of earth and its atmosphere which inhabits living organisms
Correct Answer :
D. that part of earth and its atmosphere which inhabits living organisms
Related Questions
The biggest herbarium of India is
Botanical Survey of India - Calcutta
St. Xavier's Herbarium - Mumbai
Central National Herbarium - Calcutta
IARI - New Delhi
What is the major constituent of biomass of an organism
Nitrogen
Carbon
Phospnorus
Oxygen
When young plants are grazed too heavily they get killed because
the roots are starved
of the mechanical injury to roots
most of the aerial parts are eaten away
of the mechanical injury to branches
An American plant which had become a troublesome weed in India is
Typha latifolia
Cyperus rotundus
Parthenium
Eichhornia
Mark which is true
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
Laterization is a process which results in the
purification of water
formation of soil
sterilization of soil
degradation of soil
The best indicator of SO^2 pollution is
Lichens
Algae
Fungus
Fems
Water plants usually have
a well developed root system
a well developed vascular system
a well developed stomatal system
a reduced vascular system
Hydrilla is a
suspended hydrophyte
submerged hydrophyte
floating and anchored plant
a free floating hydrophyte
Radiation is a health hazard as it causes
leukaemia
polio
pneumonia
haemophilia
Commensalism is
when both organisms are benefited
when one organism is benefited without affecting the other
when one organism is affected
when both organisms are affected
Correct definition of ecosystem is :
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
Vegetation in Delhi is predominantly
halophytic
mesophytic
xerophytic
hydrophytic
The source of energy in the ecosystem is:
decomposition of animals and plants by bacteria
photosynthesis by green plants
fermentation of sugars
sun-light
The ultimate source of energy for fish is
Protozoa
Oxygen produced by plants
Sunlight
Manure in the soil
The least porous soil among the following is
loam soil
clay soil
sandy soil
poeaty soil
Desert plants are generally
Succulents
Heterophyllous
Herbaceous
Viviparous
A pollutant is any substance, chemical or other factor that changes
natural geochemical cycles
the natural flora of a place
the natural wild life of a region
the natural balance of our environment
Which of the following is normally not at atmospheric pollutant
CO
Hydrocarbons
An area of soil is thoroughly wetted and allowed to drain until capillary movement of water is stopped. The water content of the soil now gives
storage water
capillary water
field capacity
gravitational water
What will happen if our water resources are continued to be polluted by industrial wastes
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
Silent valley is situated in
Kashmir
Kerala
Africa
America
. Biome is
the flora on land
the flora in ocean
a community of organisms interacting with each other
that part of earth and its atmosphere which inhabits living organisms
The first stage of plant succession on earth is called
Adaptation
Acclimatisation
Colonisation
All the above
First link in any food chain is green plant because
green plants systhesize food
the green plants eat everything
they are fixed at a place
none of these
Smog is a common pollutant in places having
excessive so2 in their air
excessive ammonia in the air
low temperature
high temperature
Humus is an example of
soil structure
organic colloids
crystalloids
none of the above
Pedology is the study of
soil
locomotion of animals
rocks
crop diseases
Carbon cycle includes
producer - consumer - decomposer
decomposer - consumer - producer
producer - decomposer - consumer
consumer - producer - decomposer
Tropical evergreen forests are seen in
Himachal Pradesh
Haryana
Tamil Nadu
Assam