Question

1. this catastrophic earthquake nearly leveled all of san francisco.
2. the greatest ecological catastrophes have occurred through the introduction of outside species.
3. he also made a category of the papers at anchin and annotated many of them.
4. yes, a comet slamming into the planet or some galactic answer could wipe us all out.
5. there are many charities starting up to help families
6. meant to compete with nintendos mario, sonic hel
7. all members that belong to the same answer are sitting together.
8. war is the most powerful answer in technical developments.
9. but a belief in the existence of something is a judgment and a answer judgment of existence.

cataclysm
cataclysmic
catapult
catalyst
catatonic
categorical
catalogue

Explanation:

1. "catastrophic" is an adjective meaning extremely harmful or damaging, fitting for an earthquake that nearly leveled a city.
2. "catastrophes" is a plural noun for large - scale disasters, appropriate for ecological disasters.
3. "category" is a noun for a class or division, suitable for organizing papers.
4. "cataclysm" is a noun for a violent upheaval like a comet hitting the planet.
5. No clear context given for this one in the provided text.
6. No clear context given for this one in the provided text.
7. "category" can be used to group members.
8. No clear context given for this one in the provided text.
9. No clear context given for this one in the provided text.

Answer:

1. catastrophic
2. catastrophes
3. category
4. cataclysm

5.
6.

1. category

8.
9.