Some human activities brought out in this lesson section that affect the health of sub-saharan africa's marine ecosystems are: (select all that apply) a resource extraction b vegetation clearing c invasive species d dams e development f farming g tourism

A resource extraction

B vegetation clearing

C invasive species

E development

G tourism

Explanation:

The sub-Saharan Africa marine ecosystem is affected by the presence of the man-made activities as the resource extractions, clearing of the forest and depletion f the vegetation zones, invasion of non-native species to lands and there impacts on the marine life. Various development activities like the construction and tourism activities that lead to the degradation of the landscape the loss of mineral and soil fertility. All these tend to disturb the sub-Saharan African unique biodiversity of the marine ecosystem.

Answer// dinosaurs emerged during mesozoic era;