Topic Details (Notes format)

Which organ in the body filters waste from the blood to produce urine?

Who discovered the Indus Valley civilization?

Which element has the chemical symbol "Fr"?

What do caterpillars transform into?

Which is the smallest bird in the world?

Who discovered Persepolis?

What does SIM in a mobile phone stand for?

Which river forms part of the border between Mexico and the United States?

Which astronomer wrote the 16th-century work ‘De revolutionibus orbium coelestium’ on heliocentrism?

Which country hosted the first modern Olympic Games in 1896?