Marie and Pierre Curle were both winners of the Nobel Prize in physics. This prize is one of the highest any scientist can receive. Their
daughter, Irene, also recelved a Nobel Prize in chemistry. The Curies were a remarkable family. Pierre Curle was already a famous scientist when he
met Marle, who had fled from Poland. Together they discovered polonlum and radium, two elements that are important in modern industry. Pierre
Curie was killed in an accident, but Marle carried on scientific research until she died in 1934.
What is the main idea of this paragraph?
O 1. the importance of Pierre and Marie Curie's studies
2. the importance of winning the Nobel Prize
O 3. the achievements of the outstanding Curle family
O 4. Marie Curle's desperate escape from Poland