Answer: d
Explanation: Mechanical (physical) weathering is the breakdown of rock into smaller particles due to such factors as freezing and thawing, release of pressure, water absorption, salt crystal formation, landmass uplift, expansion and contraction from the sun or fire, plant root growth, actions of animals, abrasion, or other means that do not directly affect the rock's chemistry.
Answer:
They think that the world will get warmer as a result
San Francisco - it's right on a fault line, which means that it's more likely to have earthquakes or other natural disasters related to tectonic plate movement.
