Study of physical, chemical and biological aspects of fresh water is called
hydrology
oceanography
limnology
genetics
Soot and hydrocarbons from industries may cause
blood pressure
cancer
tuberculosis
diphtheria
Which one of the following acts as a primary as well as a secondary consumer in the forest ecosystem?
Rabbit
Deer
Lion
Man
Interaction between cow and lion is called
intraspecific
interspecific
intergeneric
all of the above
Interaction between cows, buffalloes, goats and horses is
more
less
nil
all the above
Which of the following is a Zooplankton?
hydrilla
nitella
rotifers
frogs
Animals permanently living in caves do not have
nose
eyes
legs
stomach
Birds excrete
urea
ammonia
nitrates
uric acid
Aestivation is during
summer
winter
monsoon
autumn
Which animals eliminated in the intraspecific competition.
weaker
stronger
better equipped
longer
