They were here before the sea floor rocks
Answer:
Temperatures in the lowlands of West Africa are high throughout the year, with annual means usually above 18°C. In the Sahel, maximum temperatures can reach above 40°C.
Wind, different air pressure.
D. single- and simple multi-celled organisms
Although more complex animals like invertebrates and multi-celled organisms began to appear, it was very late compared to the original, simpler organisms for which the Precambrian time is characterized by.
The main crops are beans, sesame, cashews nuts, cassava, cocoa beans, ground nuts, gum arabic, kola nut, maize or corn, melon, millet, palm kernals, palm oils, rice, plantains, rubber,soybeans, sorghum and yams.
