A. Is covered with savanna.
I think it would have to be B. Sublimation
I would say that in very fast moving water such as in a river, the cobble size could be transported because cobbles are 64-256mm so are quite big and in a quiescent stream won't move much but in a freshet say in a steep mountain stream they can be rolled along such as I observed in the local streams at a mining town during the Hurricane Fifi in Honduras in 1974.
HEY MATE THIS IS UR ANSWER
<em>A cliff is a steep and often sheer rock face. If you stand on the edge of a cliff and peer over, you'll be able to see the waves crashing on the rocks below.</em>
HOPE IT HELPS YOU
many fossils can be preserved in the ice. as well as radiation levels. oxygen levels. carbon dioxide levels. and many more to determine the climate of the past.
