A or B not sure though
(1 or 2)
Answer: supplied air mask
Explanation: because air can go in the mask and the gases and fumes can hurt you.
Answer:
white triangles
Explanation:
A horizontal line of white triangles painted across a lane of traffic is called a yield line. The white triangles upside down mean the people at the traffic lane, have priority so, all the drivers must reduce the speed stop and wait for them, before going on their way.
Answer:if done effectively you will be prepared for college
Explanation:
A small community seems to be the best answer