21978 is a magic number. When this number is multiplied by 4 we get a strange result ,21978*4=87912,which is the reverse form of 21978

Nice information ma'am

Yes sir, very beneficial

Yes social science is equally important Use collaborative discussions,solve a historical problem, visit in historical monuments, use project based learning. Students will enthusi...

Definitely a teacher should be updated with the current knowledge,and keep their students updated. What is going in our surrounding, new experiments along with bookish knowelege sh...

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Yes ma'am it is too interesting

Yes sir

Situated in the USA Yellowstone Caldera is surrounded by rivers, lake, and mountain ranges. It's most notable feature is natural geyser called Old Faithful which erupts almost exac...