Pls answer lol What is a major threat facing intertidal zone ecosystems?

pollution caused by human activities

the mysterious disappearance of phytoplankton

exceptionally high or low tides

habitat destruction caused by hurricanes

According to coulomb's law, how would the electrical force between particles change if the product of their electrical charge increased?

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m