what a science for class 6 Quiz

Question Number 1 magnet does not attract made up of element, iron, nickel ,cobalt A. true B. false C. I don't know D. I don't know magnet Question Number 2 virus is made up of only one cell A. true B. false C. I don't know Question Number 3 life span of alligator A. 50-55 B. 45 C. 10 D. 60 E. 56 F. 30 Question Number 4 virus is made up of only one cell A. true B. false C. I don't know Question Number 5 burning of fuel is- A. chemical change B. physical change C. reversible change Question Number 6 concentrated solution is- A. when amount of solvent becomes less B. when amount of solute becomes less Question Number 7 which of the following is a property of metal A. they are malleable , lustrous B. they are non sonorous, brittle Question Number 8 which of the following is periodic A. rotation of earth B. moving of fan C. beating of heart D. expansion of lungs Question Number 9 which is the best conductor of electricity A. silver B. magnesium C. copper D. aluminium Question Number 10 hydrophytes A. live in water B. live in desert