It has layers because sediments continue to build up with the lighter stuff on the surface which pushes previous sediments down into layers.
Answer: The ice caps are already in water.
Explanation:
The ice packs in North Pole and the ice sheet in Antarctica are already in water. When they melt therefore, they are simply being converted from one state to another but the quantity is the same.
In other words, the volume that the ice occupied in the water becomes the volume of liquid added to the water so there is no net change in volume added leading to sea levels staying the same.
The line would have to pass through at least two points.
The traditional economic activity of the Yupik was the hunting of sea mammals, especially seals, walrus, and, until the latter half of the 19th century, whales. Hunting methods included harpooning from shore or boats, spearing animals in land drives, and, later, the use of guns.
Physical evidence of climate change at least can be shown as vegetation, Glacial Geology, Animals, Precipitation, sea level change. Since Climate change is the change in weather pattern so any unnatural weather pattern can show a change in climate (if it is repetitive) like snowing in July down in Florida