The Silk Road is a network of trade routes between China and lands but im not sure if its to lands to the West
<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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Emperor Ashoka. Indian emperor who controlled over 3 million Sq Km. He was responsible for the spread of Buddhism outside the borders of India
Answer: Externalities are side effects (good or bad) that occur when a person or a company performs an activity and does not assume all the costs of it, or all the benefits that could be reported. In this way we can distinguish:
Negative externality: Arises when not all the costs of a negative effects are assumed. In these cases, a social cost is generated, since it is the whole society that suffers the consequences of its actions. And the market price does not collect this cost.
Positive externality: Arises from a positive effect that is not reported as a benefit. An example of positive externality that we can mention is scientific research, from which society in general benefits. In these cases, market place do not reflect the real benefits.
