Understandings about science and technology Scientific inquiry and technological design have similarities and differences. Science and technology are reciprocal. Technology also provides tools for investigation, inquiry, and analysis. Perfectly designed solutions do not exist. All solutions have trade-offs, such as cost, efficiency, and appearance.
Technological designs have constraints, such as properties of materials.
Other constraints limit choice in design. Science in Personal and Social Perspectives Populations, resources, and environments Causes of resource depletion vary from region to region and from country to country. Natural hazards External processes of the earth system cause natural hazards, such as floods, that can destroy human and wildlife habitats. Human activities also can induce hazards through resource acquisition and land-use decisions. Such activities can accelerate many natural changes.