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CBSE->Std 9 Questions

Total Questions 1962
WHAT IS A PERFECT SQAURE
Which is the longest word in English language?
who formed the word quiz?
what is shifting cultivation?
which country is known as land of music?
who invented algebra?
WHERE WAS FIRST TIDAL ENERGY STATION WAS BUILT
WHAT IS SUSTAINABLE RESOURSES ?????
what is meaning of biotechnology?
when does a volcanic eruption takes place ?
When you want to become a psychologist, what college would you recommend?
Does a histogram always have to have the separated intervals on the x axis? For example, I know that histograms show frequency of things arranged in intervals. But when you make the graph, do the intervals have to be on the x axis?
I understand that the British and Indian spell this word as "colour". However, the U.S spells it "color". Would "colour" be TECHNICALLY correct because it came first, or are both equally right?
when we breathe dust goes in our nose and we sneeze.why?
DEFINE ELECTRIC CIRCUIT
why we can't sneeze with our eyes open ?
What is the English word for the taste of chilly?
Difference between NIC AND MODEM IN A NETWORK?
how do plants grow i cant understand . tell in clear manner
WHAT IS NOUN