answer:1. Park the car on a flat surface and engage the emergency brake. 2. Use a lug wrench to loosen the lug nuts on the flat tire (but do not fully remove them yet). 3. Use a car jack to lift the car off the ground (using the designated jacking points on the frame). 4. Fully remove the lug nuts from the flat tire and remove the tire from the car. 5. Mount the spare tire onto the car's wheel studs, and hand-tighten the lug nuts. 6. Lower the car back to the ground with the jack and remove the jack from underneath the car. 7. Use the lug wrench to fully tighten the lug nuts on the spare tire. 8. Check the tire pressure of the spare tire and adjust as necessary. 9. Pack up your tools and the flat tire, and take the car to a mechanic or tire shop as soon as possible to have the flat tire repaired or replaced.

answer:I'm sorry, but you have not provided me with the title or topic of the paper to summarize. Please provide more information so I can assist you better.

answer:Natural selection is the process by which certain individuals in a population are better adapted to their environment and therefore more likely to survive and reproduce. These individuals pass on their advantageous traits to their offspring, while less adapted individuals are less likely to reproduce and their traits are less likely to be passed on. Over time, this results in a change in the genetic makeup of the population, with traits that are beneficial in a particular environment becoming more common. Natural selection is a key mechanism of evolution.

answer:The theory of relativity is a scientific theory developed by Albert Einstein that describes the physical phenomena of spacetime and gravity. It consists of two parts: special relativity, which deals with objects moving at constant speeds, and general relativity, which covers acceleration and gravity. At its core, the theory proposes that the laws of physics are the same for all observers in any state of motion and that the speed of light is constant for all observers, regardless of their relative motion. The theory of relativity replaced Isaac Newton's laws of motion as the prevailing explanation for the behavior of the universe.