Fact 1: Ice wedging is when ice causes rocks to crack by expanding in openings. Fact 2: Ice wedging is the most important form of mechanical weathering. Given the two facts above, answer the question "What does mechanical weathering do to a rock?" with the following options: - move to different locations - Causes it to crack - Makes it shrink - break off - Regrows it - decreases its bodily water - Moves it - Causes it to grow
Causes it to crack

Fact 1: Roundworms reproduce sexually. Fact 2: Sexual reproduction involves karyogamy and meiosis. Given the two facts above, answer the question "Roundworms reproduce using meiosis and what?" with the following options: - karyogamy - pollen - survive - reproduce - allow growth - Energy - Leptospirosis - seeds
karyogamy

Q: Fact 1: Competition may lead to aggressive behaviors or displays of aggression. Fact 2: Social aggression is characterized by a dog that demonstrates a deep grumbling bark. Given the two facts above, answer the question "What can lead to a dog demonstrating a deep grumbling bark?" with the following options: - sensory neurons - reduced heat - competition - Decibels - friction - Damaged hearing - matter vibrating - adding heat
A: competition

Question: Fact 1: Aswitch is used to start the flow of current in an electrical circuit. Fact 2: Electric power is ready to use at the flip of a switch. Given the two facts above, answer the question "what gives electric power" with the following options: - televisions - heat energy - energy - current flow - kinetic energy - engines - weather - air conditioners
Answer: current flow

*Question*
Fact 1: Heat can change the state of matter. Fact 2: Fire makes heat. Given the two facts above, answer the question "what can change the state of matter?" with the following options: - Acids - energy - gravity - volume - density - toxins - fire - motors
**Answer**
fire

Fact 1: The mass of an object causes the gravitational force exerted by that object. Fact 2: Gravitation is a universal force of attraction acting between all matter. Given the two facts above, answer the question "What causes the amount of attraction exerted by an object?" with the following options: - mass - motion - motors - heat - energy - wind - fibers - fields
mass