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Where to find fossils
In some localities fossils may be found in stone quarries or where there are rock out- crops. Try to search someone in the community who knows about fossils and then plan a field trip with the class to collect some of them.
Fossils can often be established by breaking lumps of soft or bituminous coal apart. Break the lumps carefully and study the broken surfaces for imprints of leaves and ferns
Explain the Respiratory Centre The respiratory centre consists of two main parts - inspiratory centre and the expiratory centre. The inspiratory centre is dominant. A reciproca
Miller's Experiment The above theory could be tested by recreating in the laboratory on a small scale, the conditions which must have existed when life originated on the
How are fossils formed? Ans) Fossils are formed amongst periods of rock formation, and caused by the gradual accumulation of sediment above millions of years at the bottom, mos
Procedure 1 . After the dissection experiment is over the dead animals are put in disposable paper bags and the bag is sealed. Animal tissues and excreta should also be put and
Determine about the Bicarbonates Bicarbonates are highly soluble, Ca(HCO3)2 goes into solution. Further, stronger acids, like nitric a nd sulphuric acid present in soils thro
Management of Forest Resources: Considering the ever growing demand of wood and realising the importance of conserving our forest resources, it has become necessary to find alt
To show how water rises in fine tubes Make some fine hair or capillary tubes by heating glass tubing in a flame and drawing it out. Cut the tubes and glue them to a piece of c
what are the problems
Internal Bleeding : There is little that you can do for most internal bleeding other than treating for shock and calling for a doctor immediately. If the patient's condition becom
what is tratosphere
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