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Environment Changes Causing Endangerment or Extinction

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Âge recommandé: 10 ans
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Bahamas

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Environment Changes Causing Endangerment or Extinction

Select the correct word to complete the sentence.

Virtual School Bahamas
1

roads extinction succession tornados nutrients constantly cutting crown dry germinate animal environment endangered

In ecosystems there is usually stability . However , changes occur . These changes may be sudden or gradual . Storms , such as hurricanes and , as well as forest fires can cause rapid changes to the environment . After a change in the ecosystem , the environment reacts by permitting new additions of plant and life . These new additions are called ? succession ? . Fires speed up the process of .

Forest fires occur on most of the islands of The Bahamas during the season . Some forest fires burn dead leaves and branches on the forest floor releasing into the soil . After a fire , grasses sprout and dormant seeds in the rich soil . The bark of pine trees are resistant to fires which enable them to survive forest fires . Small changes in climate , in soil conditions or in plant or animal population can change an ecosystem . This change is gradual over thousands of years .

Pollutation also changes the ecosystem . Mass land clearing , down of hills , filling in of mangroves and digging canals and marinas also affect the ecosystems .
Human activity contributes greatly to the changes in the . Activities such as adding chemical fertilizers to soil , building new , homes , schools , shopping centres and burning fossil fuels lead to the endangerment and of organisms .

Animals such as the white pigeon , the iguana , the green sea turtle and the Bahama Parrot are . Laws are being enforced to prevent the capture of these animals . This way the number of these species can increase to avoid extinction .