Pedology is the study of
soil
rocks
animal diseases
locomotion of animals
Correct Answer :
A. soil
Related Questions
The energy storage of consumer level is called
gross primary productivity
net primary productivity
secondary productivity
none of these
Which one is the direct ecological factor ?
Soil structure
Wind
Temperature
Climate
The total set of feeding relationships in a biotic community is called
a food chain
trophic levels
food webs
ecosystem
An organism which lives at the expense of another organism is called
predator
prey
host
parasite
The first fish that eats upon the planktonic form is
carnivore
primary consumer
secondary consumer
decomposers
Association of a sea-anemone with hermit crab living in a gastropod shell is an example of
mutualism
commensalism
symbiosis
parasitism
The source of energy in an ecosystem is
light received from sun
heat liberated during respiration
heat liberated during fermentation
none of these
The whale is
primary producer
carnivorous secondary consumer
herbivorous
a decomposers
Plants growing on sea shores show characters of
hydrophytes
mesophytes
xerophytes
halophytes
The most widespread form of symbiosis in nature is
mutualism
commensalism
predatism
parasitism
Trophic levels are formed by
plants only
animals only
carnivorous animals only
organisms linked in food-chains
Ultra-violet radiation from sunlight causes the reaction that produce
CO
Fluorides
All the living organisms on earth constitute
biome
biosphere
community
population
Animals in cold regions have fur because
hair is a good insulating material
hairs trap air which acts as insulator
they like fur
none of these
The main cause of soil erosion in India is
drought
heavy rainfall
deforestation
heavy winds
Biome is
a part of the earth and its atmosphere which inhabits livings organisms
a community of organisms interacting with each other
the fauna and flora on land
the fauna and flora on ocean
The transitional zone where two different types of communities meet is called the
Ecotype
Littoral
Ecotone
Both and
The term "ecosystem" was first proposed by
A.G. Tansely
H.T. Odum
Karl Mobius
None of these
Soil particles are arranged in order of increasing size are
sand, silt and clay
silt, sand and clay
clay, sand and silt
clay, silt and sand
The total interacting animals and plants in any well defined area which as field or a pond is known as
biosphere
biome
community
ecosystem
Which of the following atmospheric pollutants is not produced by the exhaust of motor vehicles in Delhi
Fly ash
Hydrocarbon gases
CO
Pedology is the study of
soil
rocks
animal diseases
locomotion of animals
In an ecosystem the population of
primary producers is larger than that of primary consumers
secondary consumers is the largest because they are most powerful
primary consumers is the least dependent upon primary producers.
primary consumers outnumber primary producers
The soils transported by water are called
peat
alluvial
colluvial
none of these
A food-chain consists of
producer only
producers and consumers
consumers only
decomposers only
Silent valley of Kerala is preserved because
it contains timber trees
it harbours lions
it harbours elephants
it contains rare animals and plants
Acid rain is
limited to industrial areas
presence of large quantity of SO^2 in the atmosphere
a natural phenomenon
presence of CO^2 in the atmosphere
Synecology is the study of
community in relation to environment
individuals
environment
water
Birth rate under ideal conditions is known as
mortality
natality
both and
none of these
Desert animals are called
arboreal
cursorial
benthos
xeric