Is this grammatically correct?

Es malo que las fuentes de la naturaleza estén contaminadas porque es malo para el medio ambiente y los animales.

This antislavery crusader was known as the "conductor" of the underground railroad: A. Harriet Tubman B. Olaudah Equiano C. Soljourner Truth D. Frederick Douglass

Your friend is adding to her argument that favors teens owning smartphones. Which of the following is the most respectful, relevant, and credible statement that could add to her argument? A.

What's the meaning of baby?

What is the conflict in the excerpt?

Present tense, A watched pot never _ fill in the blank, what is the word

Which is the best reason to organize a team? to allow others to do most of the work to encourage working independently to take advantage of individuals' strengths to allow others to take complete control

Sheena has to write an essay in response to a reading from her textbook. She agrees with the author, so she has done some research to find other authors who support her reason for agreeing.

Does Kanye west believe that violence is always the answer

Media do not influence learning. Learning takes place because of the instructional methods represented in the medium which are used, rather than medium itself. It is the instructional methods which influence learning.

What does endless wealth / i thought / held out its arm to me mean?