Answer:
What you're talking about
Explanation:
a noun clause is a dependent clause with a noun inside of it. usually starting with "How, that, what, whenever, where"
Answer:“What are you reading, anyway?” she asks, walking ahead into the school. “I found a book in the library about magnolia trees, just like the ones back home in—” “It's time to focus on school now, Langston, and not trees.
Answer: Our future does not exist, just like alien invasions do not exist either.
Explanation: We build our own future, in the present with plans, which will become true if we work hard. Alien invasions can only exist in our mind, just like future only exists in our minds at the present. Do not let your mind be "invaded" by "aliens", invade your mind yourself with amazing plans.