1.people / about / not / algebra / know about / times / ancient/in2.before / do / ptolomey / about / the map / the earth / al-khwarizmi / research / develop3.the scientist / the volume / measuring / and / contribute to / about / learn / the science.4.many / before / he / he/ write / die / at the age 70 / works.5.to serve / that / he / wrote / al-khwarizmi / his works / mention / humanity.
ответ: 1people didn't know about algebra in ancient times.
2. Al-Khwarizmi had done the map, before Ptolemy developed research about the Earth
3. The Scientist contributed to learn about the science and measuring the volume
4. He had written many works before he died at the age of 70
5. Al-Khwarizmi wrote to serve humanity,he mentioned that in his works
Объяснение: