Which is NOT a focus area of Terra satellite?

The Terra satellite is primarily focused on studying various aspects of the Earth's systems, including the atmosphere, climate, water and energy cycles, and the interactions between different components of these systems. Its instruments are designed to monitor and understand the dynamics of atmospheric composition, climate change, and the water cycle, which collectively contribute to a deeper understanding of global environmental changes.

Geological formations, while important for understanding Earth processes, are not a primary focus of Terra. Instead, geological studies are often conducted using other specialized remote sensing missions or satellites equipped with different sensors aimed at assessing the Earth's surface features and geology. Terra's suite of instruments is more oriented towards atmospheric, climatic, and hydrological research rather than geological mapping or resource assessment. Thus, identifying geological formations as not being a focus area aligns with the primary objectives of the Terra satellite mission.