noun. an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers.

What does glacier mean dictionary?

noun. an extended mass of ice formed from snow falling and accumulating over the years and moving very slowly, either descending from high mountains, as in valley glaciers, or moving outward from centers of accumulation, as in continental glaciers.

What is Overcropping in science?

When plants grow, they pull nutrients out of the soil. If too many of the same kind of plants are grown on the same soil, as with a single crop, they deplete that soil of any nutrients, which is known as overcropping.