Which of the following threats to survival of species is considered to be the most serious? a. hunting c. chemical pollutants b. habitat destruction d. introduced, "exotic" species

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

then go eat. lol.brainliest