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: if the surface of our planet is different after a while, what could have happened? (A) the surface eroded on its own (B) all of these (C) there were natural occurrences (D) man has damaged the surface

SOLUTION: B

PROBLEM: Animals adapt to their what? (A) appearance (B) feet (C) skin (D) nature places

SOLUTION: D

PROBLEM: A source of heat is used to make (A) ice cream (B) salad (C) lemonade (D) pastries

SOLUTION:
D