1 the first one because I put it and got it
When moisture is present in the atmosphere and temperatures are low enough, ice crystals will form and continue to combine with each other until the matter is heavy enough to actually fall to the ground.
Inside a cloud, tiny ice crystals latch onto very tiny particles of dirt or debris. When the matter is heavy enough, it falls.
Hope this helps you with understanding weather function.
Progressive verbs I believe end in "-ing" because they are actions that are still in the process of being performed. So, the answer is C because of the word "reading"
C or D. C because varying delivery isn't something that alot of people worry about, or D, because some times you don't need to use key words. I wouldn't trust myself with this answer, so be careful.
