Exploration of the African continent was made difficult for Europeans because of the size of the Sahara, insect-borne diseases, and

Question

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competition for colonies.

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cataracts on the rivers.

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missionary activities.

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lack of economic incentives.

Answer 1

Exploration of the African continent was made difficult for Europeans because of the size of the Sahara, insect-borne diseases, and cataracts on the rivers.