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
Correct Answer :
B. presence of large quantity of SO^2 in the atmosphere
Related Questions
The total interacting animals and plants in any well defined area which as field or a pond is known as
biosphere
biome
community
ecosystem
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
Trophic levels are formed by
plants only
animals only
organisms linked in food chains
all of these
One always finds many more of the prey species than of the predator. This is called a
food web
pyramid of numbers
pyramid of succession
none of these
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
When a big fish eats a small fish, which eats water fleas supported by phyto-plankton, the water-fleas are
producers
primary consumers
secondary consumers
top consumers in the food-chain
Which is the correct sequence in a food-chain
Grass > Wolf �Deer -^Buffalo
Grass � Snake �Insect �Deer
Grass -�Insect >Birds >Snake
Bacteria ->Grass ~>Rabbit -�Wolf
All the living organisms on earth constitute
biome
biosphere
community
population
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
Which of the following is an anti-forest conservation activity ?
Economy in timbering
Clear falling of trees
Prevention of fibres
Preservation of wild animals
Birth rate under ideal conditions is known as
mortality
natality
both and
none of these
A food-chain consists of
producer only
producers and consumers
consumers only
decomposers only
Some animals have a constant high body temperature. This is because
they like this temperature
they can work fast in the temperature
they prefer to live in cold region
they are active animals
Biological equilibrium is equilibrium among the
producers
producers and consumers
decomposers and producers
producers, consumers and decomposers
Gas liberated in Bhopal gas tragedy was
methyl isocyanide
phenyl isocyanide
ethylene
acetylene
Smog is a combination of
air and water
water and smoke
smoke and fog
fire and water
Silent valley of Kerala is preserved because
it contains timber trees
it harbours lions
it harbours elephants
it contains rare animals and plants
Synecology is the study of
environment
individual
specific species
plant community
Ultra-violet radiation from sunlight causes the reaction that produce
CO
Fluorides
The term "ecosystem" was first proposed by
A.G. Tansely
H.T. Odum
Karl Mobius
None of these
An organism which lives at the expense of another organism is called
predator
prey
host
parasite
The energy storage of consumer level is called
gross primary productivity
net primary productivity
secondary productivity
none of these
The soils transported by water are called
peat
alluvial
colluvial
none of these
Desert animals are called
arboreal
cursorial
benthos
xeric
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 most polluted city in the world is
Tokyo
New York
Calcutta
Mexico
Plants growing on sea shores show characters of
hydrophytes
mesophytes
xerophytes
halophytes
Animals which live at the bottom of the sea are called
leutic
benthic
pelagic
none of these
Which one is the direct ecological factor ?
Soil structure
Wind
Temperature
Climate