Vermicomposting is done by
fungus
bacteria
worms
animals
recycling of substances in nature is mainly done by
Scavengers
Consumers
Decomposers
None
ultimate source of energy is
Water
Sun
Cloud
Moon
Organisms that eat dead animals that they themselves have not killed are called
Producers
None of these
An animal that can tolerate the heat of the desert is
rats
camel
cow
lion
Which layer acts as a protective blanket and prevents the harmful ultraviolet rays .
Carbon dioxide
Ozone
Earthosphere
Biosphere
plant eating animals are called
Herbivores
Carnivores
Omnivores
Which one of the following is an example of biotic component of environment?
wind
water
vegetation
temperature
All plants that contain the green pigment called
Xanthophyll
Erythrocyanin
Chlorophyll
Chloroplast
If waste materials contaminate the source of drinking water which of the following diseases will spread?
Scurvy
Typhoid
Malaria
Anaemia
