How do planets and stars differ from one another

Describe how an electric generator works

There is a liquid capsule inside a cup full of liquid. the cup full of liquid has salt in it and the liquid capsule has no salt in it. in which direction will the solvent flow? a. the salt does not have to move b. from the capsule to the larger cup c. equally between the capsule and the cup d. from the larger cup to the capsule

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?