Density is Mass divided by volume
D = M/V
B1 (Thiamine), because chronic alcoholics often have poor nutrition, and Thiamine deficiency in the brain can lead to "Wernicke Encephalopathy."
Well Deposition is the transportation of sediments involving wind,water, ice, snow, etc. that's not subsurface.
Erosion and weathering happens when rock is exposed to the elements such as wind ,water,rain, sleet,hail, etc.
Plate tectonics is the only one that involves shifting under the surface of the earth.
You can figure it out by looking at a sequence of rocks to try to decipher the times that an event occurred relative to the other events represented in that sequence. The relative age of a rock then is its age in comparison with other rocks. If you know the relative ages of two rock layers, (1) Do you know which is older and which is younger? (2) Do you know how old the layers are in years? so yeah séquences haha
