Answer: supplied air mask
Explanation: because air can go in the mask and the gases and fumes can hurt you.
Answer:
7
Explanation:
there is on online calculator that solves equations and shows the steps.
There are two important responsibilities that are only for U.S. citizens: to vote in federal elections and to serve on a jury. ... By voting, citizens are participating in the democratic process. Citizens vote for leaders to represent them and their ideas, and the leaders support the citizens' interests.
