What would you do to change a saturated solid/liquid solution to an unsaturated solution a saturaated gas/liquid solution to an unsaturated solution?

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

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

When the chemicals iron sulfide (fes) and hydrochloric acid (hcl) are combined, bubbles appear from the mixture. 1. does the appearance of bubbles indicate a physical or chemical change? 2. why do the bubbles indicate this change? 3. what property is this?