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

Answer: In humans, a trait can be determined by one pair or many pairs of

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

Answer: Beaver dams can cause floods. This statement shows how

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?