Mountainside communities often have plans in place to keep people safe during a natural disaster. Place the mass movements in order based on the amount of reaction time the community members will have to get to safety. Start with the mass movement event that gives people the least amount of time to react.

answer: c.

explanation:

i think its the first one

here is the answer

water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. weathering is the breaking down or dissolving of rocks and minerals on earths surface. once a rock has been broken down, a process called erosion transports the bits of rock and minerals away.