question: Given the fact "contact between rocks over long periods of time causes rocks to smooth", what is the answer to "If a rub two rocks together after awhile they will start to"

OPTIONS:
- Get smooth
- Become butterflies
- Become art
- Make a chair

answer: Get smooth

question: Given the fact "force causes the speed of an object to increase", what is the answer to "Igniting the shuttles boosters causes it to"

OPTIONS:
- explode
- stop midair
- accelerate
- decelerate

answer: accelerate

question: Given the fact "An example of seed dispersal is animals eating seeds", what is the answer to "Humming birds may help the growth of"

OPTIONS:
- cars
- buildings
- ants
- tulips

answer: tulips

question: Given the fact "as the mass of an object increases , the force required to push that object will increase", what is the answer to "Pushing a little kid on a swing is easy because they are light. It will require more strength to push when"

OPTIONS:
- when he loses weight
- when he eats chicken
- seventy four plus five
- he's older and heavier

answer:
he's older and heavier