Agriculture, electricity, mining
The best and most correct answer among the choices provided by your question is the fourth choice or letter D. Most African countries have Unitary form of government.
A unitary state is a state governed as a single power in which the central government<span> is ultimately supreme and any administrative divisions (sub-national units) exercise only powers that the central </span>government chooses to delegate. The majority of states in the world have a unitary system of government<span>.
</span>
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
Answer:
Using records of flood patterns to predict future flooding is one example that is an application of the principle of uniformitarianism.