Question

(3) State the cause and effect of forest fire.​

Answer 1

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Forest fires increase carbon dioxide levels in the atmosphere, contributing to the greenhouse effect and climate change. In addition, ashes destroy much of the nutrients and erode the soil, causing flooding and landslides.

Answer 2

Answer:

CAUSES OF FOREST FIRE

• Human activities – Fires are often caused by open burning, improperly discarded cigarettes, improper functioning of power lines, and camping fires on windy or dry days. The 4th of July is always a busy day for fire departments. Fireworks are a common cause of forest, grass, and brush fires.
• Lightnings (they caused 17% of wildland fires, but a minimal percentage of overall forest fires)
• High wind is not a direct cause of fires, but it contributes to their spreading in 14% of the cases.

EFFECTS OF FOREST FIRE

• The health of people involved is affected, since dust and smoke cause respiratory disorders. Fatalities are not uncommon, either. Lifesavers and firefighters put their lives in danger when trying to control wildfires.
• Fire departments are forced to use harmful chemicals in order to put wildfires under control. The soil absorbs these flame retardants and their traces stay within it for years. They reduce its fertility and affect the composition of future vegetation. As a result, these chemicals have a negative effect on biodiversity.
• Forest fires leave ashes behind. They erode the soil and destroy the balance in its nutrients. As a result, there’s an increased risk of landslides and flooding.
• Wildfires contribute towards increased levels of carbon dioxide in the atmosphere. This makes the greenhouse effect stronger, and it speeds up the climate change.
• Smaller animals, such as snakes, rabbits, insects, squirrels, and birds, are at major risk of death during forest fires. If the fire isn’t put under control for a long time, it can lead to extinction of certain species from that forest. Not all animals can migrate early after detecting oncoming fires. Some are left behind and killed. Those that move cannot go back to their previous habitats, since the plants that supported their lives are now gone.
• Degradation is an immediate effect of forest fires. A fire can wipe clear thousands of acres of vegetation. This contributes to an increased air pollution in urban area.

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