Different perceptions of a region can make that region less defined is true im not a 100% sure tho
At collision they push together and then subduction(one plate going to the asthenosphere and becoming magma.).
Answer:
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. ... Weathering and erosion constantly change the rocky landscape of Earth. Weathering wears away exposed surfaces over time.
Explanation:
Mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus, and lysosomes.