Help if u good at science lol Why does the arrow labeled Fnorm point upward?

O A. Gravity pushes up.

O B. The statue pushes up.

O C. The ground pushes up.

O D. Air resistance pushes up.

Afamily is one another name for a group on the table of elements.

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?

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils. the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.