Because there hard to climb up it and makes our muscles exhausted
The right answer is B. ☻♥
From the chart that is contained in this question the country that is considered as the least developed are countries 1 and 5.
The reason for this answer is the fact that both of these countries have the lowest income per capita in US dollars.
Apart from this fact, country 1 and 5 also are among the countries with the highest infant mortality per 1000.
Life expectancy is also the lowest in both countries while urban population is lowest there too.
Read more on brainly.com/question/23302283?referrer=searchResults
The statement is correct.
When a flood is giving a time-bonding term, such as the 100-year flood, in this statement, it means that it has been noticed that the floods from the particular river occur on approximately that much of a time span.
If there has been a flood recently, than it most probably means that there isn't going to be a flooding caused by that river for the foreseeable future.
Now, there's always exceptions, as the climate patters are changing constantly, and there's always surprises, but in general, in lot of regions of the world, there has been noticed a certain consistency in some natural occurrences.
