Advertisements
Advertisements
प्रश्न
There is mass mortality of fishes in a pond. What may be the reasons?
Advertisements
उत्तर
The possible reasons can be:
- thermal pollution.
- addition of harmful compounds such as mercury to water.
- obstruction of fish gills by any water pollutant.
APPEARS IN
संबंधित प्रश्न
What are the different states in which water is found during the water cycle?
Water is converted into _______ when it is heated
State for the following whether it is due to evaporation or condensation:
Blackboard dries up after wiping it.
Water evaporates into air from oceans, rivers, and lakes but not from the soil.
Analogy:
Filtering: Sand:: ______: Ammonia.
Which of the following are not the liquid forms of water?
- Snow
- Lake water
- River water
- Water vapour
- Ice
Choose the correct combination from the options below.
Explain the three stages of the water cycle.
The process of the water cycle that is related to the plants is called ______.
India accounts for ______% of all recorded species.
According to you, which process of the water cycle is adversely affected by human activities?
