All but the 3rd one, i think.
the potential for humans to provide more in-depth observational research than unmanned rovers,
Answer:
This would depend on which side you are on, so if you are on the side allowing students to text at school, you can say it opens resources for students as well as a source of communication. However, personally I think that the argument that students shouldn't text would be easier because it has more evidence. You can say students can cheat, they can get distracted which will lead to bad grades etc
Answer:
I don't understnad this question
Explanation:
<span>Plummeted means to fall or drop straight down at high speed </span>
