A. My friend told me about seeing massive rocks flying through the air; it sounded pretty dramatic to witness a major rock like that. b. While skiing in the mountains, we saw a huge where snow and ice mixed with rock fell and tumbled rapidly down the hillside into the adjacent valley.
c. The news reported a large amount of non-water saturated material moved downslope along a particular plane and deposited at the valley bottom where it temporarily dammed a river. That's the third reported this week following some heavy rains.
d. The moved from the flank of the volcano down into the valley, and depositing rock and debris that buried infrastructure much like when a river floods its floodplains.

1. fall
2. debris flow
3. avalanche
4. landslide
5. soil creep

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.

i believe this is