figure 2. The Earth's main plates Why do plates move? The earth's tectonic plates are in constantly moving like giant 'rafts' on top of the semi-molten mantle below.
2. Waliohudhuria– Andika orodha ya wote waliofika kwenye mkutano huku kuanzia na yule mwenye cheo cha juu zaidi hadi kwa wanachama.