Answer:
Sinkholes are just one of many forms of ground collapse, or subsidence. Land subsidence is a gradual settling or sudden sinking of the Earth’s surface owing to subsurface movement of earth materials. The principal causes of land subsidence are aquifer-system compaction, drainage of organic soils, underground mining, hydrocompaction, natural compaction, sinkholes, and thawing permafrost. Land subsidence can affect areas that are thousands of square miles in size.
Explanation:
dont have one
Glaciers that form high up in the mountains are classified as alpine glaciers. The correct option among all the options given in the question is option "b". Glaciers are constant chunk of ince that actually moves under its own weight. Glaciers can be found in mountains, valleys and in oceans. 99% of the glaciers on our earth are found in the polar regions.
I don’t have an explanation for this-
Answer D
A and b are about animals
C is resources
And d is about the land benefiting us humans