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When I was a youngster and could not afford a magnifying glass, I would twist a piece of wire around a pencil so that it formed a round piece at the end of the wire. I would then dip the rounded end into water so that a blob of water made a very small magnifying glass.

I suspect that when it has rained this same effect is left on leaves, millions of tiny magnifying glasses all concentrating the suns rays onto what they happen to land on. Just one tiny focal point of a rain drop could possibly generate enough heat to start a fire.


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โˆ™ 2008-06-28 05:43:12
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Q: Whether presence of water cause forest fire?
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Related questions

How can water cause forest fire?

What causes the forest fire is not the presence of water, but rather the absence of it. Water puts out fires and prevents wet items from burning - you cannot hope to burn a wet towel unless the fire is there for long enough that the heat causes all the water in a particular area to evaporate. However when the object is dehydrated and then overheated, or if a spark lands on it, it will burn easily. A drought resulting in many dehydrated branches and leaves would increase the likelihood of a forest fire.

Which one is more acidic forest or grasslands?

forest cause the rain water is more acidic

How does the clearing of forest cause water pollution?

When clearing the forest by burning down trees cause water pollution because the smoke will form acid rain and go into the water where we drink... Read more on my page and comment!

Which type of weathering does not require the presence water?

Sunlight and wind can cause weathering.

What can a water monitor be used for?

A water monitor is used to detect the presence of pollutants such as pesticides, metals and oil. It identifies whether water is meeting the designated use.

What are the Factors which cause defects in NMR spectrum?

The main factor is the presence of water. If the sample is NOT fully dried of water it will cause a big 'spike' in the spectrum .

Why methanol ethanol and propanol soluble in water?

The cause is the presence of the group -OH.

Why do some gas bubbles pass through lime water when first heated?

Cause of the presence of carbondioxide

What are acceptable coliform levels in water?

Any coliform presence in drinking water is cause for concern. Zero percent is the standard for drinking water.

Can water vapor rust iron?

Rusting will only occur in the presence of both water and oxygen. In the presence of oxygen, water vapour in the air will cause rusting to occur. So unless you are talking about the iron coming into contact with water vapour but when there is no oxygen, the answer is yes.

Why does moisture cause rust to form?

Oxygen in the presence of water cause rusting; rusting is an oxidation reaction. The hydrated iron oxide (Fe2O3) is formed.

How mining operation cause the destruction of forest?

Mining operations in forest areas have also contributed to the destruction of forests.Mining activities cause soil erosion,while mine wastes and tailings pollute bodies of water.

Can acidic water cause glaciers to melt?

Water can speed up the rate at which glaciers melt. Whether the water is acidic or not has no effect.

Why should excess bromine water be avoided in the test for free tryptophan?

The presence of excess bromine water will cause the pink color to disappear and it may be masked by the color of the reagent.

One cause why oxygen is found at atmosphere?

One cause why oxygen is found at atmosphere is the presence of water. The atmosphere is made up of different gases with oxygen being one of the main gases.

What causes a nail to rust?

This is because of presence of water and air. A nail will not rust if there is no presence of air or water. If there is presence of water or air only, the nail would not rust. -CindyChan

The presence of these in water causes water to conduct electicity?

Pure water, by itself, is not capable of conducting electricity. However, when other substances are added and ions make their way into water, those free ions can cause water to conduct electricity.

Conditions that cause rusting?

the presence of oxygen is the main condition that causes rust. however, many other substances can cause rust such as salt and water, lemon juice and coca-cola as well!

What does the presence of'Entamoeba histolytica' in drinking water indicate?

The presence of Entamoeba histolytica in drinking water indicates the contamination of water or we can say that water pollution.

What are benefits and drawbacks of microorganisms presence in water?

None for benefits, however they can cause disease such as cholera or typhus. It is impossible to remove all microbes from anything.

What do you make at the cooling tower water treatment?

one main reason of treating cooling tower water is the presence of substances that can cause corrosion. what we do is eliminate the corrosive agents. well corrsoion is one of the reasons,it may cause chocking,blocking in the pipes which then will restrict the flow and cause severe damage

What are unique characteristics on Earth compared to other planets?

presence of oxygen..... presence of water............. presence of life................

How does the presence of an acid in a water solution affect the pH of the solution?

The presence of an acid lowers the pH of the solution in water.

How does the presence of an acid in a water solution affect of the pH of the solution?

The presence of an acid lowers the pH of the solution in water.

What kind of water is in the deciduous forest?

Mainly fresh water is in a deciduous forest.