The feet of ducks are webbed. This adaptation helps them to
hold branches tightly
swim faster in water
float on water
eat insects and grab things
Which one of the following characteristics will NOT be an advantage to the animals living in the ocean?
A smooth body
Water filtering structures
Long body hair
Presence of webbed feet
Kanha national park is situated in
Uttar pradesh
Andhra Pradesh
Madhya Pradesh
Himachal Pradesh
Plants and animals help in maintaining the balance of
trees and animals
oxygen and carbon dioxide
green plants and plant eaters
water and minerals
By observing the independence of plants and animals and circulation of oxygen and carbon dioxide we can say that
some day all the oxygen will be used up by the animals
some day all the carbon dioxide will be used up by the plants
the amount of oxygen is increasing and that of carbon dioxide is decreasing in the atmosphere
the level of oxygen and carbon dioxide in the atmosphere is kept constant
Which one of the following steps should NOT be taken in the care of domestic animals?
They should be kept in clean shelters
They should be given clean drinking water
They should be given pesticides when infected with disease
They should be given proper food at fixed intervals of time.
Watering and manuring are necessary for the growth of
crops
human beings
animals
algae
Our national bird is
crow
peacock
sparrow
parrot
The air we breathe out contains more
oxygen
carbon dioxide
water
chlorophyll
Which one of the following is the most important function of hair in animals?
it helps in regulating the body temperature
it is used to attract members of opposite sex
it is used for defense and camouflage
it is dead and is of no particular use
