If waste materials contaminate the source of drinking water which of the following diseases will spread?
Scurvy
Typhoid
Malaria
Anaemia
Which one of the following is an example of biotic component of environment?
wind
water
vegetation
temperature
Temperature is an example for
Abiotic
Biotic
Both a and b
None of these
Which one is example of omnivores ?
Lizards
Snakes
Humans
Lions
Biotic environment includes
producers
consumers
decomposers
all the above
Which of the following is not a primary contributor to the greenhouse effect?
carbon dioxide
carbon monoxide
chlorofluorocarbons
methane gas
Acid rain is formed due to contribution from the following pair of gases
Methane and ozone
Sulphurdioxide and nitrous oxide
methane and sulphur dioxide
Carbon dioxide and sulphur dioxide
Which one is biotic components ?
Light
Temperature
Water
Plants
flesh eating animals are called
Herbivores
Carnivores
Omnivores
Scavengers
A sequence of organisms linked through the process of eating and being eaten is called .
Food chain
Food web
