Answer:
The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one—it “has not cleared its neighboring region of other objects.”
It could have pros because it may be a better technique, and helps you get more of what you want, but it could also have cons, because it could give back less than what you got with the other technique. This is like if you have a job filing paperwork, and you have a good technique or tool to help you along quickly, but you decide to try something new, and end up being able to get things done faster. However, you might decide to change your techniques again, and you may find that it gets things done much slower. Hope this helps.
Answer:
If lava cools slowly and does not move too fast it forms smooth ropy lava called pahoehoe.
However, if it cools quickly and moves fast it can tear into clinkery pieces called a'a
