Which gas prevents the spread of fire and extinguishes it? is a type of compressed gas that prevents the spread of fire and extinguishes it.

carbon dioxide

Explanation:

The carbon dioxide is a gas which can prevent the spread of fire and extinguishes it. It is a gas which is used in an active fire extinguisher device which is used for extinguishing fire in the emergency cases. The carbon dioxide gas restricts the combustion of the fuel by the oxygen. It is filled in the  fire extinguishing cylinders with force and compression so that when it released it exert some pressure over the burning site to stop the fire.

it is either c or d and i know for sure it is not a or b

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.