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A firefighter uses a water hose to extinguish a burning building. How does this action disrupts the fire triangle?(1 Point)It creates more heat.It adds more fuel.It removes heat by cooling the burning materials.It doesn't affect the fire triangle.

Question

A firefighter uses a water hose to extinguish a burning building. How does this action disrupts the fire triangle?(1 Point)It creates more heat.It adds more fuel.It removes heat by cooling the burning materials.It doesn't affect the fire triangle.

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Solution

The fire triangle represents the three elements a fire needs to ignite: heat, fuel, and oxygen. A firefighter using a water hose to extinguish a burning building disrupts the fire triangle by removing heat. The water cools the burning materials, reducing the heat available to sustain the fire. This cooling effect can help to extinguish the fire.

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discuss the causes extent and environmental impact of similpal forest fire 2021

Read the passage.The Triangle Shirtwaist FireThe early twentieth century was a difficult time for New York City's garment workers, many of whom were immigrant women who worked long hours in dangerous factories for poverty-level wages. After the garment workers went on strike in 1910, some factory owners improved their workplaces and allowed employees to join unions. The Triangle Shirtwaist Factory was a notable exception: the owners resisted a union and continued to maintain shoddy working conditions. On March 25, 1911, a fire broke out at the factory. Many workers were trapped inside; the rickety fire escape collapsed, and the only accessible exit had been locked. In all, 146 workers perished. The tragedy sparked public outrage about labor injustices, and citizens pressed their government to take action. Consequently, over the next few years, New York's legislature passed many laws designed to improve workplace safety.What is the main, or central, idea of the passage?The Triangle Shirtwaist Factory fire killed almost 150 factory workers, who were trapped inside due to a locked exit and a broken fire escape.Despite a strike by garment workers, the owners of the Triangle Shirtwaist Factory refused to support unionization.Because of the Triangle Shirtwaist Factory fire, the government began to regulate working conditions in factories.Submit

In the U.S., wildland firefighters are able to stop about 98% of all wildfires before the fires have burned even 100 acres. That may seem comforting, but decades of quickly suppressing fires has had unintended consequences.Fires are a natural part of many landscapes globally. When forests aren’t allowed to burn, they become more dense, and dead branches, leaves and other biomass accumulate, leaving more fuel for the next fire. This buildup leads to more extreme fires that are even harder to put out. That’s why land managers set controlled burns and thin forests to clear out the undergrowth.However, fuel accumulation isn’t the only consequence of fire suppression.Fire suppression also disproportionately reduces certain types of fire. In a new study, my colleagues and I show how this effect, known as the suppression bias, compounds the impacts of fuel accumulation and climate change.

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