Answer:
Aerial Apparatus: This is an aerial apparatus used to fight fires from the air by dropping water on it. It can also be called a "flying bucket," or a "water bomber." The aerial apparatus carries up to 8500 gallons of water. The water tank has two doors that open out so that it can be filled with water. Once full, the water is pumped into the reservoir where it flows through a series of nozzles located at various places on the apparatus.
BLS Unit: This is an emergency medical service vehicle. Its purpose is to respond to calls for help from people who have been injured in accidents or other emergencies. These units are equipped with basic life support (BLS) equipment. Basic Life Support includes things such as defibrillators and oxygen tanks. A BLS unit will usually carry two paramedics, one of whom will ride in the ambulance and one of whom will drive. Paramedics have specialized training in medicine and are trained to provide emergency care to people who have suffered injuries.
ALS Unit: This is an advanced life support (ALS) unit. It responds to calls for help when someone's health has deteriorated to a point where they need more than just first aid. ALS units are often staffed with two paramedics, one of whom rides inside the ambulance and the other of whom drives. An ALS unit is similar to a BLS unit except that its paramedics are trained in advanced techniques like administering drugs intravenously, intubation, and resuscitation.
Quint: This is another type of apparatus that responds to emergencies. It is made up of four vehicles: a lead car, a reserve car, a medic unit, and a command vehicle. The reserve car carries extra supplies like food, blankets, and medical kits. The medic unit has special equipment for treating patients with minor injuries. The command vehicle is usually a truck or van. In some cases it may even have a helicopter pad built onto it. Command vehicles are sometimes also referred to as "command cars."
Step-by-step explanation:
My own original answer.