PLEASE HELP 20 POINTS AND IF YOU DO WELL I WILL GIVE BRAINLIEST, IT'S ACTUALLY KINDA EASY NGL I JUST DONT WANT TO DO IT!!! 1.list two pieces of evidence that the Plate tectonics move (NOT ALFRED WEGENERS)

2.LAYERS IN SEDIMENTARY ROCK ARE CALLED

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called

you can have just about every answer you can think of

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.