Scientists believe that increased pollution may cause global warming because pollution includes greenhouse gases, which trap heat in the Earth’s atmosphere.
Option B
<u>Explanation</u>:
When the average temperature of earth increases and rises continuously above the normal value for a long period of time the it is referred as global warming.
Human beings are major cause in increasing pollution by various means whether its chemical industrial metallic or any other type of pollution. The major contributing factor in aiding pollution is the smoke from factories or vehicles which increases the carbon dioxide level above normal and when these gases rises they are trapped inside the earth surface and produce a green house effect. This is the main reason that scientists think aboutglobal warming.
Whitney Smith was credited for the making of the "Global Arrowhead".
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The answer to the question is B
Answer:
You can live in igloos because it gives protection from the cold and some people live in them
Answer:
Growth stage
Explanation:
The Growth stage -
Fire begins with a growth period which either transits to a rapid flashover period or, if that stage is not reached , starts to decay and fire ends . Growth phase is usually defined as the preflashover stage. Traditionally , compartment fires are either a fuel-controlled or ventilation controlled .
Fuel controlled fire is when the oxygen is available to combust all available fuel vapors in enclosure . Whereas ventilation controlled fire is when there is no enough oxygen to combust all the fuel available inside the enclosure.
