Smog is a common pollutant in places having
excessive so2 in their air
excessive ammonia in the air
low temperature
high temperature
Correct Answer :
C. low temperature
Related Questions
. 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
Deforestation may reduce the chances of
frequent cyclones
rainfall
frequent landslides
erosion of soil surface
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
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
The food chain in which microorganisms break down the energy-rich compounds synthesized by producers is
parasitic food chain
consumer food chain
detritus food chain
predator food chain
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
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
The biggest herbarium of India is
Botanical Survey of India - Calcutta
St. Xavier's Herbarium - Mumbai
Central National Herbarium - Calcutta
IARI - New Delhi
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
Biosphere is:
In which individuals interact with each other
In which life originated
The name of a bird
Organic compound by which life diminih
Plankton, Nekton and Itenthon are not the components of one of the following ecosystems:
Marine
Freshwater
Grassland
Pond
Biologists celebrate 5th June as
Darwin's birthday
World hygiene day
World environment day
World population day
Which of the following functions performed by forests help most in controlling drought
Forest prevent soil erosion
Forests act as water sheds
Forests have lots of water plants
Forests bring rainfall, in monsoon
One of these is a renewable source of energy:
Solar energy
Hydro-power
Natural gas
All of these
Desert plants are generally
Succulents
Heterophyllous
Herbaceous
Viviparous
Which of the following is normally not at atmospheric pollutant
CO
Hydrocarbons
In grassland ecosystem the pyramid of energy is
upright
inverted
upright or inverted
none of these
Carbon cycle includes
producer - consumer - decomposer
decomposer - consumer - producer
producer - decomposer - consumer
consumer - producer - decomposer
Humus is an example of
soil structure
organic colloids
crystalloids
none of 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
Pedology is the study of
soil
locomotion of animals
rocks
crop diseases
Smog is a common pollutant in places having
excessive so2 in their air
excessive ammonia in the air
low temperature
high temperature
The first stage of plant succession on earth is called
Adaptation
Acclimatisation
Colonisation
All the above
Autumn colouration of leaves appears only in
Tropical regions
Deserts
Temperate deciduous plants
Deserts
The ultimate source of energy for fish is
Protozoa
Oxygen produced by plants
Sunlight
Manure in the soil
A habitat of long severe winters and growing season limited to a few months of summer constitutes
Taiga ecosystem
Tundra ecosystem
Savannah ecosystem
Tropical rainforest
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
An American plant which had become a troublesome weed in India is
Typha latifolia
Cyperus rotundus
Parthenium
Eichhornia
Radiation is a health hazard as it causes
leukaemia
polio
pneumonia
haemophilia
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