/5 General Knowledge Quiz – 7 1 / 5What is laughing gas? Carbon monoxide Sulphur dioxide Hydrogen peroxide Nitrous Oxide 2 / 5What does the term ‘Piano’ mean? ‘To be played by hands.’ ‘To be played fast.’ ‘To be played softly.’ 3 / 5Who is the fastest land animal in the world? Jaguar Cheetah Leopard The fastest animal on land is the Cheetah. Cheetahs can run up to approximately 120 Kms(75 miles) per hour speed. The fastest animal on land is the Cheetah. Cheetahs can run up to approximately 120 Kms(75 miles) per hour speed.4 / 5What is another word for a ‘lexicon’? Atlas Encyclopedia Dictionary 5 / 5Paleontology is the study of ? Plants Mineral Fossils Your score is 0% Restart quiz Next quiz By WordPress Quiz plugin