What skills enabled Gallileo to interpret the results of his experiments

layer a is the exosphere and layer b is the thermosphere.   is the answer i think but i hope this .

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

its c its is a mixture of gases

what is the question because that is not a question.