Describe which of Earth substances are involved when a hurricane passes through an area explain how these different subsystems affect one another

Which substances have the lowest melting points: ionic covalent, or metallic

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space