I just took a test in school today. What question was I asked?

Question I was asked: Which mixture contains ingredients that can be easily separated?


I just took a test in school today. What question was I asked?

Question I was asked: Which two systems are involved when waste and water are removed from blood as it flows through the kidneys?


I just took a test in school today. What question was I asked?

Question I was asked:
The presence of high temperatures during fossil-fuel formation results in a higher percentage of which product?