Earthquakes and volcanoes threaten altiplanos meet at the regions edge in the Andes.
Answer:
Business cycles are a type of fluctuation found in the aggregate economic activity of nations… a cycle consists of expansions occurring at about the same time in many economic activities, followed by similarly general recessions… this sequence of changes is recurrent but not periodic."
Answer:Estimating the average level of nitrogen in the water
Explanation:
The concerned citizens are trying to determine the average level of nitrogen in the water. They collected the samples for a month in order to get the correct average reading of nitrogen.
They might be interested in knowing whether there is excess nitrogen in water or not as excess nitrogen can overstimulate the growth of aquatic plant and algae. Excess growth can, in turn, clog water intakes, use dissolved oxygen, Block sunlight by covering the entire lake.
Answer:2 change february to February
This is a common pronoun hence one has to use a capital letter for a pronoun. Those are the name for things like the names of the cities or schools , general terms for common things.