Answer:
C. were formed by stellar nucleosynthesis during the life cycles of older stars and supernovae
Explanation:
Heavy elements were not formed during big bang but were formed in nuclear reactions in older stars and supernova
Answer:
Two categories of volcanoes: Fissure and central.
-Fissure: Typically produces mafic eruption with lava, usually of basaltic composition. An example is Cordon Caulle in Chile.
-Central: Typically produces intermediate eruption. An example is Mount St. Helens in the United States.
Explanation:
Answer:
We can use the example of the Greater Accra region, one of the new regions of Ghana.
Explanation:
The Greater Accra region consists essentially of the city of Accra, and its immediate sorroundings, and has over 4 million people.
As the most populated region in the country, its regional economy is the most important for Ghana. It is where a great part of the country's industrial and service sectors are located. The reason for this is geographical: people living close to each other in cities tend to form closer economic ties that increase efficiency and productivity.