What will the world be like without plate tectonics?
Very very quiet... and still.
The seven continents would never have separated one from another and we would all be living in pangea with one united continent, one universal language and one universal religion.
There would be no such things as landforms. No mountains, no rivers, no trenches... Just.... FLAT!
without plate tectonics we wouldnt be able to live the earth would basically cave in since there is no structure.