Objects made of this substance can form valleys named aretes and hills known as drumlins.
One form of this substance is classified into VHDA, HDA, and LDA, according to its density. In earth science, diamond dust is composed of this substance. Proteins known as AFPs bind to this substance, allowing for the survival of many sympagic organisms. In planetary science, the name of this substance is used as an alternate name for (*) volatiles. When lava erupts through this substance, volcanoes known as tuyas are formed. Objects made of this substance can cause the depression of the Earth's crust, leading to isostatic rebound when removed. Objects made of this substance can form valleys named aretes and hills known as drumlins. For 10 points, name this substance which makes up glaciers and the polar caps.
One form of this substance is classified into VHDA, HDA, and LDA, according to its density.
ice [prompt on water or equivalents]