The chemical name of Laughing gas is___________?

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The instrument which measures very high temperature is____________?

A. Manometer B. Thermostat C. Chronometer D. Pyrometer E. None of these...

Oasis is associated with___________?

A. Glaciers B. Desert C. Islands D. Volcanoes E. Fertile land...

Which of the following plants are called arthrophytes?

A. Sphenopsids B. Lycopsids C. Psilopsids D. Pteropsids...

Calcium sulphate is commonly called ?

A: Chemical Reaction B: Plaster of Paris C: Washing Soda D: None of above...

Development of calf muscles in ladies who wear high heel sandals is common example of ?

A: Natural selection B: Artificial selection C: Use & disuse of organ D: Inheritance of acquired character...