Desert plants are generally
Succulents
Heterophyllous
Herbaceous
Viviparous
Correct Answer :
A. Succulents
Related Questions
Biosphere is:
In which individuals interact with each other
In which life originated
The name of a bird
Organic compound by which life diminih
Carbon cycle includes
producer - consumer - decomposer
decomposer - consumer - producer
producer - decomposer - consumer
consumer - producer - decomposer
Autumn colouration of leaves appears only in
Tropical regions
Deserts
Temperate deciduous plants
Deserts
Silent valley is situated in
Kashmir
Kerala
Africa
America
Which is the correct food chain
grass � wolf > deer > buffalo
bacteria � grass � rabbit > wolf
grass � insect � bird � snake
grass > snake �insect � deer
One of these is a renewable source of energy:
Solar energy
Hydro-power
Natural gas
All of these
The first stage of plant succession on earth is called
Adaptation
Acclimatisation
Colonisation
All the above
. 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
Tropical evergreen forests are seen in
Himachal Pradesh
Haryana
Tamil Nadu
Assam
Pedology is the study of
soil
locomotion of animals
rocks
crop diseases
Radiation is a health hazard as it causes
leukaemia
polio
pneumonia
haemophilia
Which of the following is normally not at atmospheric pollutant
CO
Hydrocarbons
In cities like Mumbai and Delhi, the major air pollutants are
ozone
carbon monoxide and oxides of sulphur
hydrocarbons and hot air
algae spores and marsh gas
Increasing accumulation of DDT in organisms of a food chain in higher trophic levels is known as
biotic potential
biotic component
biological value
biological amplification
The biggest herbarium of India is
Botanical Survey of India - Calcutta
St. Xavier's Herbarium - Mumbai
Central National Herbarium - Calcutta
IARI - New Delhi
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
The ultimate source of energy for fish is
Protozoa
Oxygen produced by plants
Sunlight
Manure in the soil
Deforestation may reduce the chances of
frequent cyclones
rainfall
frequent landslides
erosion of soil surface
Desert plants are generally
Succulents
Heterophyllous
Herbaceous
Viviparous
Which one of the following is associated with the conservation of forest ?
Bharatpur
Kaziranga
Silent Valley
Gir
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
Smog is a common pollutant in places having
excessive so2 in their air
excessive ammonia in the air
low temperature
high temperature
Hie sequence blue green algae > crustose lichens � foliose lichens > mosses � shrubs � dicotyledonous tree represents
a food chain
genetic drift
ecological succession trend
a phylogenetic trend
Primary treatment of sewage means
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
The source of energy in the ecosystem is:
decomposition of animals and plants by bacteria
photosynthesis by green plants
fermentation of sugars
sun-light
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
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
What is the major constituent of biomass of an organism
Nitrogen
Carbon
Phospnorus
Oxygen
In grassland ecosystem the pyramid of energy is
upright
inverted
upright or inverted
none of these
The best indicator of SO^2 pollution is
Lichens
Algae
Fungus
Fems