Question: Daniel drives a new car that uses catalytic converters. His best friend Kelvin however driving an older car. His car does not use any type of catalytic converter. They decide they want to go on a road trip together but dont know who's car they should take. Will Kelvin buying a car like Daniel's increase or decrease the amount of pollution he creates while driving?
Answer: decrease

Question: Dan is in his physics lab. He is experimenting with colliding particles. He has two samples of particles, sample A and sample B. Sample A contains gas particles, but sample B does not contain gas particles. In which sample the momentum would be conserved, sample A or sample B?
Answer: sample A

Question: Mike is an an archeologist. He was pondering about how human legacy would be viewed in the future. For that, he was very interested in technofossils. He located a site with ample evidence of technofossils. He noted that site as site A. To compare site A with a site with no technofossils he located another site. He noted that site as site B. Which site would see more changes in biodiversity in the fossil record, site A or site B?
Answer:
site A