A deluge system is one which uses a detection system that detects exposure to fire or smoke to alert a water sprinkler network which will then flood the affected area with water to douse a fire. They are installed in areas deemed "high-risk" or "high-hazard" such as chemical plants, chemical storage facilities or aircraft hangers. They are one aspect of a firefighting system, which may also use other tools or alarms to ensure people and facilities are protects from fire damage.
Answer:the work of Heating and Air Conditioning Mechanics and Installers combines the skills of a Heating, air conditioning, and refrigeration mechanics and installers work on heating, ventilation, cooling, and refrigeration systems.
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Answers explained below
Explanation:
1. Option b) Knowing your purpose gives you a clear direction on what to present and how to present. The purpose of clarity leads to quality content that connects with the audience.
2. Option a, b and d
-> We must know the general elements such as age, gender, and education. This generally determines the topic's appeal to the audience and you need to know ways of delivery that will connect with the audience.
-> Further, the idea is that the audience remembers the content and main catch points and not what we will get out of presentation.
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Poverty rates and median family income
Indeed, the poverty rate of recent immigrants is more than twice that of U.S. natives. Because of this, at any point in time, the poverty rate would most certainly be lower in the absence of immigration. Also, increasing the immigrant share will raise the poverty rate.