Recent orders
shortages of safe food supplies as well as high economic losses. Also
the excessive use of anti-biotics in animal husbandry and human medicine has enhanced the selective pressure on pathogenic bacteria
glacial quakes
bed deformation and internal deformation.
burying the older snow layers and compressing the. Re-crystallization of those older layers of snow then follows due to the pressure from the the new layers. This forms some grains which are small in size. With time
the grains grow smaller and the air spaces between them become smaller. This makes the snow to compact and become more dense. After some period