<span>Lithosphere includes all the Earth known to us: the mountains, the ground we walk on, etc. It's solid - else we would not be able to walk on it! the more inner layers of Earth are liquid, but lithosphere, the outermost layer is solid. The tectonic plates are not floating on the lithosphere - they form the lithosphere! So the correct answer is A - it is solid and composed of crust and upper mantle (outer later)</span>
The seven steps of the scientific method start with observing the occurrence or asking a question, researching the topic, forming a hypothesis, designing and conducting an experiment, analyzing results, drawing a conclusion and reporting results.
Some common organelles of all cells are plasma membranes, ribosomes, and cytoplasm.
Vestigial because they don't use it but it's still there
Natural selection it has to be 20 characters so disreguard the rest