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Biology
OpenStudy (anonymous):

The process of desertification can occur when?

OpenStudy (anonymous):

@TheSmartOne help

TheSmartOne (thesmartone):

overgrazing by animals

TheSmartOne (thesmartone):

also by deforestation when you cut too man trees the soil gets loose..

OpenStudy (anonymous):

i think is when a forest is clear cut

TheSmartOne (thesmartone):

Exactly what deforestation means.

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

can you help me with another one?

TheSmartOne (thesmartone):

sure

OpenStudy (anonymous):

here: using coal for fuel release pollution into the atmosphere. why do people continue if it causes pollution?

OpenStudy (anonymous):

i think Using coal is relatively inexpensive

TheSmartOne (thesmartone):

Because they need a source of energy and solar and wind power is costly and sometimes it may not work. For example solar panels will not work when it is cloudy or raining for a long time. And wind power will not work when it is not windy.

OpenStudy (anonymous):

ok

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