Answer:
Apartheid is system of legislation (system of racial segregation and discrimination) enforced by the all-white government in South Africa between 1948 and 1991.
Resistance to apartheid within South Africa took many forms over the years, from non-violent demonstrations, protests and strikes to political action and eventually to armed resistance.
An embargo is an official ban on a commercial activity or trade. One major con of an embargo on a country is that it might be harmful to an economy. Next would be the limited choice for consumers when an embargo is implemented. T<span>he imposing country could be deprived of markets and investment opportunities to competing countries. An embargo does not usually have a positive result. </span>
<span>Among the most outstanding achievements of Marie and Pierre Curie are:
</span><span>1. Discovered the elements of Polonio and Radio.
</span><span>2. They discovered and coined the term radioactivity to refer to the energy produced by the elements they discovered.
</span><span>3. Identify the radioactive properties of thorium and uranium elements.
</span><span>4. Maria Curie founded the medical research institute Marie Curie in France.
</span><span>5. Development of portable radiology units for medical use during the First World War. Marie Curie, whose maiden name was Marie Sklodowska, was born in Poland in 1867.
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</span><span>She studied mathematics, physics, and chemistry in Paris and was the first French woman to receive a doctorate degree. For her contributions to science, she won a Nobel prize in physics and one in chemistry is the first woman to win a Nobel prize and the only person who has won a Nobel in two different scientific areas. Piere Curie was a French physicist known for his work with Marie Curie that led to the discovery of radioactivity and two new chemical elements.
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I hope this information can help you.
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(A. <span>Operant conditioning-------------------------</span>