Answer:
i would say the the first 1
Explanation:
As Fire needs oxygen to burn, Carbon Dioxide Covers the fire like an blanket and cuts the contact of fire to the oxygen present in the air, So Fire stops burning.That is why Carbon Dioxide is Considere as the best Fire Extinguisher.
The percentage of CO2 increased 48 percent. Hope this helped!
Answer:
去無奈此刻投哦他家
Explanation:
pH=3 المحلول حمضي او قاعده
Answer: Chemical Reactions
Explanation:
Chemical reactions often involve changes in energy due to the breaking and formation of bonds.