fact and question: force causes the speed of an object to increase
Question: Adding force to a moving train will:

What's the answer?

answer: cause it to travel further in the same time

fact and question: a cactus stem is used for storing water
Question: A cactus stem is used to store what?

What's the answer?

answer: H2O

fact and question: being exposed to heat can cause erosion of rocks
Question: If a large boulder is kept in direct sunlight it can

What's the answer?

answer: lose portions

fact and question: An insect is a pollinating animal
Question: The bee provided a valuable service to the

What's the answer?

answer:
rose