The Himalayas in central Asia are the tallest mountains in the world. But fossils of seashells can be found high in these mountains, far from any ocean.  how do u think they got there​

Plz choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. is it possible for two different compounds to be made from the exact same two elements? why or why not? with a limited number of elements (less than 120 are known), does this mean we also have a small number of compounds or do we have a large number of compounds in this world?

Agas can holds 2.0 gal of gasoline. what is this quantity in cubic centimeters?

Which position represents spring in the southern hemisphere? a) b) c) d)