Earth's polar ice caps, sea ice, glaciers, snow cover, and permafrost make up which sphere?

Cryosphere

Explanation:

Cryosphere is defined as a part of the hydrosphere which covers the frozen portion of the hydrosphere region. This includes the glaciers, ice bergs, permafrost layers, and polar ice caps. These regions where these frozen water are available is comprised of extremely low temperature, that favored the formation of ice, changing its state from liquid to solid.

About 10% of the total landmass on earth is covered by these ice caps and glaciers, and it holds the maximum amount of freshwater present on earth.

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.