Question

1. the passage discusses how plate tectonics influences the location of natural resources. based on the information provided, elaborate on how the processes at convergent and divergent plate boundaries can lead to the formation or concentration of different types of natural resources. provide specific examples to support your explanation.
2. the passage mentions that the mantle plays a role in shaping the earths surface through residual topography. explain how differences in temperature and chemical composition within the mantle can lead to the formation of residual topography, and discuss how these features can influence erosion and sedimentation patterns in regions far from plate boundaries.

Explanation:

1. At convergent plate boundaries, subduction can lead to the formation of mineral - rich deposits as fluids are released and cause chemical reactions. For example, copper - gold deposits can form near subduction zones. At divergent plate boundaries, mid - ocean ridges are sites of hydrothermal activity. Hot fluids rich in metals like zinc, lead, and copper are released, forming massive sulfide deposits.
2. Differences in temperature and chemical composition in the mantle cause variations in density. Warmer, less - dense mantle material can cause uplift, creating residual topography. These topographic features can influence erosion and sedimentation. Uplifted areas are more prone to erosion, and the eroded material is then transported and deposited in lower - lying areas far from plate boundaries.

Answer:

1. At convergent boundaries, subduction can form copper - gold deposits. At divergent boundaries, mid - ocean ridges form massive sulfide deposits.
2. Mantle temperature and composition differences cause density variations leading to uplift (residual topography). This influences erosion in uplifted areas and sedimentation in lower areas far from plate boundaries.