Place commas where they are needed.

In the year 1783, scientific progress met old-fashioned beliefs. On an otherwise normal day, a group of French villagers got quite a surprise. Down from the sky, a strange creature slowly floated. With pitchforks and other farm tools, the villagers struck the creature. Under this furious attack, the creature finally stopped moving.

 To the eighteenth-century villagers, the object from the sky looked like a monster. At the time of the monster's visit, very few people had ever seen a balloon. From his science studies, Professor Jacques A. C. Charles had learned that a newly discovered gas called hydrogen weighed less than air. When he filled a sack with this gas, the sack floated into the air. From the heart of Paris, Charles had released his balloon, and then watched as it floated away. In their attack, the villagers destroyed the first hydrogen balloon.

I hope this helps!

hi sorry dont knoe

explanation:

the correct answer is the following.

one of the groups i belong to is the boy scouts. this is a problem-solving group because it has tasks that we need to solve in order to other people in different activities such as the rescue of lost pets, or elder people in need.

the other group i belong to is kids pro environment, and is an information-sharing group that tries to create conscience about the risks and problems that generate pollution in our cities. we share information to other students and parents on the importance of keep our communities clean and our skies clear.