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प्रश्न
Describe biological water cycles.
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उत्तर
Biological water cycle:
Here, the living organisms, i.e., plants and animals, consume water from and return it to the global water cycle. Plants take up water from the soil or water reservoir and release it back in the form of water vapours by the process of transpiration. Animals take water from water reservoir or with food and return it to the air as vapours by respiration and to the soil in the form of fluid by excretion.
Dead and decayed organisms also add water to the environment. Water vapours formed by transpiration and respiration form clouds and enter the global water cycle. Water returns to the soil and reservoir in the form of rain to be reused. This completes the water cycle.
संबंधित प्रश्न
Mention two main functions of water for living organisms.
Water is converted into _______ when it is heated
Water droplets Combines to forms _____.
The process of changing of water into its vapour is called ______.
Some definitions are given below which can be corrected by changing one word. Correct them.
- Aquifer is ground water stored between layers of hard rock above the water table.
- The process of evaporation of water in the ground is called infiltration.
- The evaporation of water from oceans and its arrival back into oceans is called vapour cycle.
Fill in the blanks in the given passage.
The rainwater and ______ from other sources such as rivers and ponds seeps through the ______ and fills the empty spaces and cracks deep below the ground. The process of seeping of water into the ground is called ______.
Place the following statements in a proper order to form a meaningful paragraph.
- Which in turn decreases the seepage of rain water into the ground.
- This decreases the open areas like parks and playgrounds.
- Increasing population create demand for construction of houses, shops, offices, roads and pavements.
- This results in depletion of water table and creates scarcity of more water.
Draw a diagram to show how sea water reaches a lake or pond.
______ is the study of patterns, and processes in the natural world and their modifications by human activities.
The cyclic flow of nutrients between non-living and living factors of the environment is termed as ______ cycle.
