I don’t know but it’s saying the one a hydrogen and ones water so i think B
There used to be solid land and then something happened and a lake or just a body of water formed over it or was made over it
<span>the plates located at our planet's surface move because of the extreme heat in the earth's core that then leads to the molten rock in the mantle layer to move. it moves in a pattern called a convection cell, it forms when warm material rises, cools down, and eventually sinks down. </span>
C. Dinosaur footprint as it is the only body part that is stated in the choices.
Hope this helps :)
C- argon
This is because, an electrolyte is a solution that conducts electricity due to the presence of ions, and since argon is an atom and not an ion, it cannot conduct. Thus, it is a non-electrolyte