Please select the word from the list that best fits the definition Any substance that changes moods, behavior, or consciousness.

drug

Explanation:

a drug is a substance that can change your mood (or worsen it, ex- some drugs make the emotion you’re feeling when you take it more extreme), behavior (some drugs can cause confusion, a decrease of attention, or hyperfixation), and consciousness (may cause drowsiness or an increase in energy).

the correct answer is c. he speculates on what might happen at given points in the future in a world without people. alan h. weisman is an american author, professor, and journalist. authors organize their information with a purpose. they present their ideas in an organized way. this is called text structure. weisman uses text structure so as to improve overall comprehension and to prove his points.

i believe the answer is a