Which of the following is a Zooplankton?
Hydrilla
Nitella
Rotifers
Frogs
Which energy is used in wind mills ?
Solar energy
Nuclear energy
Thermal energy
Wind energy
Most of the forests are seen in
Areas with sufficient water
Areas with water scarcity
Both
Areas with less sunlight availability
Study of physical, chemical and biological aspects of fresh water is called
Hydrology
Oceanography
Limnology
Genetics
Which is the intermediate host for parasites that cause malaria ?
Ant
Fish
Mosquitoes
Earthworms
Which type of water is used for flushing toilets after recycling ?
Black water
Grey water
River water
Water from pond
Which is an example for Non - renewable source ?
Hydrogen
Wind
Coal
Which is called as the largest water resource ?
Pond
Lakes
River
Ocean
Pick the odd one out ?
Cholera
Dysentry
Typhoid
Scabies
Which sewage treatment method is used to remove the settled and floating materials ?
Primary treatment
Secondary treatment
Tertiary treatment
Lateral treatment
