What is the evidence that learning is taking place?

What sound would carbon make if you hit it with a hammer? How did the Japan tsunami 2011 start? What tissue is classified as simple or stratified? What is the collective name of high-energy particles and rays given off by the nuclei of atoms? What materials were used to make the great sphinx? Which substance give the color to chlorhexidine? What are the resonance structures of CH4S? Is the buttock an organ? What happens to a degree of longitude as you move from equator towards the poles? What active forces are used when a hockey player hits the boards at the side of the rink at high speed? What is Segmentation methods? What is the formal for converting f to c? What kind of oxide is sulfur dioxide? What best describes why estuaries are important resources? When it is 10.30am in Boston what time is it in Dublin? Why salt don't dissolve in water? Convert psi to pa? What type of sounds do leopards make? The melting point is also called what? What are some Dangers to salmon and other wildlife because of human activity?