Answer:only scientists can see comet
Explanation:by there strong telescope
Answer: It is number 2 In a population-based sample of 5-to 17-year-olds, 70 percent of obese youth had at least one risk factor for cardiovascular disease
Explanation: I know
It’s probs the last one I can help I farther if u show the text
Cats make good house pets. It's the main idea in the sentence, and it's independent also. The other clause is dependent, so it is not the main clause.