TASK DEFINITION: In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
PROBLEM: storms can do what to seeds via high altitudes (A) disperse them (B) plant them (C) destroy them (D) drown them

SOLUTION: A

PROBLEM: the presence of which of these is required for the formation of cavernous chambers? (A) some carbonated soda (B) some carbon dioxide (C) some carbonic acid (D) carbon monoxide gas

SOLUTION: C

PROBLEM: Where would you be most likely to observe the most diverse of all marine ecosystems? (A) The Sahara Desert (B) off Australia's shore (C) silicon valley (D) Pacific Northwest

SOLUTION:
B