What is 5+5= and 66666666 + 555555555555=

Diamond will scratch quartz. true or false

Which of the following statement is false ? a.batteries should never be stored on metal trays or outside in the elements)b, battery acid cannot be neutralized)c.do not stack batteries on top of each other)d.never put a damaged battery in a dumpster. i

Ajoint produces movement when its angle decreases. which type of movement is it?