Gas liberated in Bhopal gas tragedy was
methyl isocyanide
phenyl isocyanide
ethylene
acetylene
Correct Answer :
A. methyl isocyanide
Related Questions
The most polluted city in the world is
Tokyo
New York
Calcutta
Mexico
The energy storage of consumer level is called
gross primary productivity
net primary productivity
secondary productivity
none of these
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
Which of the following is an anti-forest conservation activity ?
Economy in timbering
Clear falling of trees
Prevention of fibres
Preservation of wild animals
Smog is a combination of
air and water
water and smoke
smoke and fog
fire and water
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
All the living organisms on earth constitute
biome
biosphere
community
population
Trophic levels are formed by
plants only
animals only
carnivorous animals only
organisms linked in food-chains
Which of the following is normally not an important atmospheric pollutant
CO
Hydro-carbon
Which one is the direct ecological factor ?
Soil structure
Wind
Temperature
Climate
A food-chain consists of
producer only
producers and consumers
consumers only
decomposers only
Ultra-violet radiation from sunlight causes the reaction that produce
CO
Fluorides
The most widespread form of symbiosis in nature is
mutualism
commensalism
predatism
parasitism
Desert animals are called
arboreal
cursorial
benthos
xeric
The total set of feeding relationships in a biotic community is called
a food chain
trophic levels
food webs
ecosystem
In a food-chain, the saprophytic organisms are
producers
consumers
predators
decomposers
Pedology is the study of
soil
rocks
animal diseases
locomotion of animals
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
Silent valley of Kerala is preserved because
it contains timber trees
it harbours lions
it harbours elephants
it contains rare animals and plants
Which of the following atmospheric pollutants is not produced by the exhaust of motor vehicles in Delhi
Fly ash
Hydrocarbon gases
CO
Biological equilibrium is equilibrium among the
producers
producers and consumers
decomposers and producers
producers, consumers and decomposers
The soils transported by water are called
peat
alluvial
colluvial
none of these
The transitional zone where two different types of communities meet is called the
Ecotype
Littoral
Ecotone
Both and
Plants growing on sea shores show characters of
hydrophytes
mesophytes
xerophytes
halophytes
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
Association of a sea-anemone with hermit crab living in a gastropod shell is an example of
mutualism
commensalism
symbiosis
parasitism
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
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
Bio tic factors are
chemical factors of soil which affect life
physical factors of soil which affect life
all living organisms which influence other organisms
factors of atmosphere which affect life
An organism which lives at the expense of another organism is called
predator
prey
host
parasite