The central idea is what the main thing. For this, I think the central idea is simply Cactuses.
I'm not sure what another supporting detail can be, but if there's a back side, or another page about cactuses, I can sure help! But if that's the only side, ask your parents. xD
Answer:
1. good discipline teaches a person self control
2. The cage that encloses<em> </em>my parakeet is filled with toys.
3. A written agreement between countries is called a treaty.
4. someone serious in manner might be described as earnest.
5. people who feel awkward or nervous may say they are uneasy.
6. A jury will convict a defendant it believes to be guilty.
7. Human hair and fingernails grow at a(n) gradual rate.
8.The castle had a dark dungeon for captives.
9. If you drop a glass, it will probably break into jagged pieces.
10. To complain in a low but angry voice is to grumble.
11. Before you go away on vacation, you should make provisions for someone to take care of your pet.
12. Adults help babies grow and develop by nourishing them.
open your hand by your shoulder and close it as you move it towards your chest.
