The answer is the first one. Diffusion is water only while osmosis can be for gasses
Melting because you can physically see it.
There are multiple reasons. 1) there are similar fossils found on different continents. 2) the continents shapes show that they could easily fit together. 3) there are similar rocks, minerals,and land forms on different continents. 4) there's evidence that there was once lush vegetation in areas with extreme cold.
There are three main types of rocks: sedimentary, igneous, and metamorphic that form the rock cycle. Hope this helps :)
Chordates, or members of phylum Chordata, possess a backbone.
