has contributed in many ways such as in the production of:
- Many advances in metallurgy
<h3>How has Africa contributed to the world?</h3>
Africa which is the world's second-largest with the population of over 1.3 billion has contributed through her advances in metallurgy and tool making as well as bronze weapons and art .
There are many products such as copper and iron tools that is been export to the world from the continent of Africa.
learn more about Africa at brainly.com/question/25110079
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Answer:
The tree by the river and the marble staircase.
Explanation:
From the book "A Separate Peace by John Knowles"
The tree by the river and the marble staircase hold bad memories for him. The tree is the place from which Phineas fell, as an adult he sees it is weary from age, enfeebled, dry. Because of this, he comes to understand that, Nothing endures, not a tree, not love, not even a death by violence.
Answer: Observational Study
Explanation: Observational study involves observing and measuring specific characteristics without attempting to modify the subjects being studied.
