6.how do gradient and discharge change between a stream's headwaters and it's mouth?

answer; i believe that the correct answer is(d) nondisjunction during meiosis;

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