3 All citizens have to pay taxes, serve on juries etc
5 you have to be 18 or older to vote
4 Bill of rights = rights of citizens
1 each branch is checked by the other ones to make sure the power is balanced
2 power is separated so that one person doesn't have all of it therefore reducing corruption
The answer is B.) prisoners.
So with this equation, you have to work inside out with the parentheses. Firstly, solve 3+4: ![\{30-[12-7+2]*2\}-15](https://tex.z-dn.net/?f=%20%5C%7B30-%5B12-7%2B2%5D%2A2%5C%7D-15%20)
Next, solve 12 - 7 + 2: 
Next, solve 7 x 2, then 30 - that product: 
Lastly, solve 16 - 15, and your answer will be 1.
Answer:
The biggest causes are vehicle pollution, industrial emissions, thermal power plants, construction dust, waste burning and millions of poor households' use of cheap and dirty fuels such as wood and cow-dung for cooking.
