Which of the following best expresses the writer's main idea in "single room, earth view"?
question 32 options:

1)

space exploration leads to human progress.

2)

pollution is endangering earth.

3)

astronauts are highly trained scientists.

4)

space travel offers a unique view of earth.

Shauna has collected a variety of sources for her research about charlie chaplin’s impact on american cinema. in performing her preliminary evaluation of each source, shauna should-thoroughly review and examine the content.-perform a quick search to determine the author’s reliability.-check whether the author agrees with experts on the subject.-decide whether it will be useful in her final essay.