TASK DEFINITION: In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
PROBLEM: Question: If the Earth's orbit moves farther away from the Sun, what happens to the gravitational force between the two planets? 
 Answer: it decreases

SOLUTION: This is because the gravitational force of attraction between the Earth and Sun is stronger when the Earth is closer to the Sun.

PROBLEM: Question: Jeff noticed the food supply changed over time in his city. The advent of farming machines likely caused the food supply to 
 Answer: increase

SOLUTION: Better farming techniques and machines increased the food supply and the distribution of food.

PROBLEM: Question: If Mona is comparing the erosion rates of two rocks and she notices that granite is softer then marble, which rock will water erode faster? 
 Answer: granite

SOLUTION:
The water erodes the softer rock faster than the harder rock.