Based on the information present in the given passage, you need to write a correct answer to the given question. A correct answer is one that correctly and completely answers the question. Do not write answers that address the question partially or incorrectly. The correct answer must be contained in the given paragraph.

Example Input: Paragraph- Sent 1: Imagine a glass of your favorite drink that never became empty.
Sent 2: Now think about what really happens.
Sent 3: You take a drink and there is less in the glass.
Sent 4: You keep drinking and soon it is all gone.
Sent 5: Good thing you have more to refill your glass.
Sent 6: What if there would never be any more of your favorite drink.
Sent 7: What would you do?
Sent 8: Now you know the difference between renewable and non-renewable.
Sent 9: Its too bad that many things here on Earth will run out.
Sent 10: This includes some of our natural resources we depend on.
Sent 11: Things like oil will not last forever.
Sent 12: There is a limited supply.
Sent 13: Someday, we will run out, so then what?
Sent 14: At current rates of use, coal will last about 300 years.
Sent 15: Petroleum will be used up in just a few decades.
Question: What are some non-renewable resources?.
Example Output: Coal.

Example Input: Paragraph- Sent 1: Above were just a few things that caused habitat loss or change.
Sent 2: There are many ways in which living organisms can affect their ecosystem.
Sent 3: In some areas, it is because of fire management.
Sent 4: Fire is a natural event, so managing fire correctly is very important.
Sent 5: In other areas, fisherman have taken too many fish from one area.
Sent 6: This places the species at risk of extinction.
Sent 7: It also affects other living things that may rely on these fish for food.
Sent 8: The image below shows a picture of a mine.
Sent 9: Mining changes the Earths surface.
Sent 10: This area may once have been a forest or a prairie.
Sent 11: Think about how many plants and animals may once have lived here.
Sent 12: Now it is a giant hole in the ground.
Sent 13: Pollution is also a major factor in habitat loss and change.
Question: Is it possible for a living organism to affect their ecosystem?.
Example Output: Possible.

Example Input: Paragraph- Sent 1: If you build a campfire, you start with a large stack of sticks and logs.
Sent 2: As the fire burns, the stack slowly shrinks.
Sent 3: By the end of the evening, all that is left is a small pile of ashes.
Sent 4: What happened to the matter that you started with?
Sent 5: Was it destroyed by the flames?
Sent 6: It may seem that way.
Sent 7: What do you think happened?
Sent 8: The truth is that the same amount of matter still exists.
Sent 9: The wood changed not only to ashes, but also to carbon dioxide, water vapor, and other gases.
Sent 10: The gases floated off into the air, leaving behind just the ashes.
Sent 11: Although matter was changed, it was not created or destroyed.
Sent 12: Because the same amount of matter still exists, we can say that matter is conserved.
Sent 13: You may wonder how it can be conserved if something is now missing?
Sent 14: Assume you had measured the mass of the wood before you burned it.
Sent 15: Assume you had also trapped the gases released by the burning wood and measured their mass and the mass of the ashes.
Sent 16: What would you find?
Sent 17: The ashes and gases combined have the same mass as the wood you started with.
Sent 18: This example illustrates the law of conservation of mass.
Question: What is left when the stack shrinks?.
Example Output:
Small pile of ashes.