Question

fossil evidence shows that the earliest land plants were similar to today's

Answer 1

what??

Answer 2

I am assuming u do not know what the statement is trying to explain...correct?

Answer 3

If so, since you are offline, I think what it is trying to say is that plants today are similar to the plants before (as in plants in history, in the dinosaur age). And they prove this by stating that fossils that they gathered prove their statement true.