QUESTION 5 1.25 points Save Answer The expansion of desert-like conditions (into

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QUESTION 5 1.25 points Save Answer The expansion of desert-like conditions (into areas that were formerly not deserts) as a result of human-induced degradation is called a. grassification b. gentrification c. desertification d. soil abatement QUESTION 6 1.25 points Save Answer Africa is known as thecontinent because of extensive uplifted areas that resulted from the breakup of Gondwana some 250 million years ago. a. plateau b. volcanic c. fractured d.escarpment QUESTION 7 1.25 points Save Answer What disease is associated with the tsetse fly? a malaria b. mad cow disease c. sleeping sickness d. ebola

Explanation / Answer

5. The expansion of desert-like conditions as a result of human-induced degradation is called desertification.

This condition occurs particularly in arid or semi-arid areas due to influence of human activity and climatic change.

6. Africa is known as the plataeu continent because of extensive uplifted areas that resulted from the breakup of Gondwana some 250 million years ago.

Africa, South America, Australia, Antarctica and Penninsular India were the part of the Gondwanaland after the continental drift. According to Wegener's theory, there was a large continent, named as Pangea and surrounding it there was an existence of the water body, Panthalasa. The break-up of the Pangea started from carboniferous period and divided into two parts - the northern part Laurasia and the southern part Gondwana.

7. The desease associated with the tsetse fly is Sleeping sickness.

This desease is also known as trypanosomiasis, generally found in areas of Sub-Saharan Africa.

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