Question

how do you fell about nature ?it is a big natural laboratory that contains innumerable indicators

Answer 1

Nature is itself a huge laboratory with innumberable indicators like hibiscus, turmeric and etc..... . This indicators are helpful in finding acids and bases.

Answer 2

Answer:  

Nature is a big laboratory which shows a number of indicators at the times of distress and favourability.

Explanation:  

Any harm we do to the nature will be tolerated by the Mother Nature for a stipulated period of time, as we prolong doing the same thing the nature tries to give it back to us in an accelerated fashion. There are number of signs which the nature shows us for example the smell of actinomycetes in the soil before the onset of a large rain spell.