Can you post a pic so i can answer?
Answer:
My Guess is Urban centers are rapidly expanding in most regions of the world.
Explanation:
It makes the most sense, because Most of the worlds population is in big cities.
The iron in the dust reacts with oxygen
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Answer:
If you are interested in more art or other subjects not including maths, a lack of interest in the maths subject can affect how well you do
Explanation:
Less interest = poor performance
