PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoWhat is bio-indicator? How does it help human beings?
a. A bio-indicator or biological indicator is a species or a group of species whose function or status reveals the environment's status.
b. Bio-indicators are used to understand changes in the earth’s living system.
c. They cannot measure the changes associated with expanding human population.
d. Bio-indicators are used to assess the quality of the environment and how its changes over time.
e. They are used to study only terrestrial ecosystems.
f. Bio-indicators include lichens, birds, and bacteria, which are used to monitor environmental health.
g. The specific physiological and behavioural changes in bio-indicators are used to detect the changes in environmental health.
h. Lichens are natural bio-indicators of climate change and the effect of soil pollution.
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