The Nile river is the longest river in the world, followed by the Amazon river which is the second longest.
Let's take as an example the behavior of some birds, for example Storks. They live in Northern Europe in the Summer but travel South during the winter. This behaviour is actually called a seasonal migration and is dependent on the change of seasons - so the correct answer is a)
Answer:
It really depends on the person
Explanation:
If you made a game that was about ww2 and you played a leader and made choices that might work but then you not learning the real history because your making your own choices. For math I would think that if you played a game that required a lot of math like an Engineering game that could work. I know you didn't ask this in you question but for learning a language I have a lot of friends that change the language of a game to the language there learning so if there playing a game like Minecraft the could learn when there playing.
Urbanization brings noise pollution due to a larger population. This can be seen as one challenge. Another challenge is pollution such as plastic, gases, noise, etc due to the larger population. Also a big challenge is danger. You do not know the people as much in a larger town, therefore the danger to you is a lot more prominent.
