Dorothy: 1)it's cute
2)easy to take care of
3)clean almost by there selves
4)they don't have to be walked outside
5)they don't do poopoo anywher. do it on only a box
6)they do not make a loud noises
Correct:
I like cats because it's cute. I can easily take care of them. They can clean by themselves. They don't need to take a walk outside. They don't poop anywhere. Lastly, they don't make loud noises.
Explanation: When you're making a sentence you're not going to do it with numbers. You can make? a sentence by paragraphs. Try to choose the appropriate words for your sentence and if you're making a sentence the first word or letter should be capitalize. Especially, if it's another idea.

Dorothy: easy to take care of
Correct: I can easily take care of them.
Explanation: The pronoun 'I' is written in capital letters. Also, when you're making a sentence don't forget to use punctuation marks like period [.] or comma [,].

Dorothy: they don't do poopoo anywher. do it on only a box
Correct: They don't poop anywhere.
Explanation: The sentence is rephrased. You can simplify your sentences and try to choose the appropriate words. And if you're making a sentence the first word or letter should be capitalize.

Hi Dorothy! For your homework. Your corrections are all the same. Please read the explanation. I commend you for doing your homework. You're really good and an active student. Keep on studying! Go Dorothy! Thank you and Take Care! ^^

~ Teacher Belle.