PLEASE HURRY Which of the following provides evidence to support Vine-Matthews-Morley's first scientific test of the theory of seafloor spreading?

Fossils of the same plants and animals found in different seas
Change in the magnetic orientation of rocks found under the sea
Continents look like puzzle pieces that can be fit into one another
Symmetrical pattern of magnetic stripes in the crust on both sides of the mid-ocean ridge

When you post something from last year and then no one responds

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-