tectonic plates in the Earth's crust are not completely rigid
... that tectonic plates in the Earth's crust are not completely rigid but can be deformed by the melting of an ice cap?
... that <b id="mwCk8"><a href="./Intraplate_deformation" id="mwClA" rel="mw:WikiLink" title="Intraplate deformation">tectonic plates in the Earth's crust are not completely rigid</a></b> but can be deformed by the melting of an ice cap?