Barack Obama is the president of us
The present, and the fourteenth Prime Minister of India is Dr. Manmohan Singh.
The sun ,the moon,nine planets and other celestial bodies
Monarchy is a government ruled by king and queens.
Frozen river of ice is called glacier.Glaciers are formed from compacted layers of snow, that slowly deforms and flows in response to gravity.
The thin blanket of air surrounding the Earth is called Atmosphere.
Increase in global temperatures is called global warming.