The advantage maps know potical maps. weather forecast identify. Boder maps
a thick subsurface layer of soil that remains frozen throughout the year, occurring chiefly in polar regions.
Explanation:
we can protect soil quality by the following ways:
1.plantation should be done.
2.chemicals should not be used.
3.using earthworm in the field as it makes the soil fertile
4.construction of dams should be made which prevents soil erosion.
hope u get it!