Answer:
Russia is experiencing major changes in its ecosystem and is warming 2.5 times faster than the average global rate. In addition to melting ice in the Arctic and the loss of drinkable water due to depletion of the ozone layer, snow is thawing in Siberia and in northern regions of Russia
Explanation:
Answer:
my guess is because mountains are formed from earthquakes etc right? like convergent boundaries. so the two tectonic plates go towards each other like this -><- and they push each other upwards. over time, since the peaks are so high up, whethering carves the peak into a point.
D. rift valleys.
Trenches occur at convergent oceanic plates; fossils are extremely old bones, bodies, or footprints, which have gotten so old the intervening years have turned them into rock; U-shaped valleys are valleys which are shaped like the letter U, and are usually formed by glaciers, which tend not to occur underwater very often.