Answer:it depends
Explanation: sustainability of what?
A country? A company?
As long as we maintain anything economically and or socially
The lithosphere is less dense
Answer:
The heat equation can be written as. ∂ u ∂ t = α ∇ 2 u. where u(x, y, t) is the temperature field that varies in space and time, and α is the thermal diffusivity constant.
Granite<span>, </span>diorite<span>, </span>syenite<span>, </span>andesite<span>, and </span>rhyolite<span>. It is also found in metamorphic rocks such as </span>gneiss<span> and </span>schist<span>.</span>
