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

Question I was asked: If the atomic mass number of an atom is 35, which statement is most accurate?

Random question?

Which of these organisms is a producer in a marine ecosystem?

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Question generated: Which of these will best separate a saltwater solution?

Problem: Write a question you would see in a school textbook.

Answer: Traveling in opposite directions, buses A and B are passing each other at the relative speed of 25 km/h, while a passenger on bus A walks toward the back of the bus at the speed of 5 km/h. What is the velocity of the passenger on bus A relative to bus B?

question: Write a question you would see in a school textbook. OPTIONS:
- by adding carbon
- by adding nitrogen
- by removing excess water
- by removing excess minerals
answer: Decomposers increase the fertility of the soil and prevent dead organisms from building up in the environment. In which way do decomposers make the soil more fertile?

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Question generated:
Which of the following is a living component of a desert in California?