Question

which technology is useful for locating schools of commercial fish?
x - ray technology
carbon dating
water sampling
sonar and satellite imagery

Explanation:

• X - ray technology is mainly used for imaging internal structures of objects (like in medical or material inspection), not for locating fish schools.
• Carbon - dating is used to determine the age of organic materials, which has no relation to locating fish.
• Water sampling is useful for analyzing water quality (e.g., nutrient levels, pollutants), but not for directly locating fish schools.
• Sonar (which uses sound waves) can detect the presence and location of fish in water by bouncing sound off them and satellite imagery can show large - scale patterns of water conditions (e.g., temperature, chlorophyll levels which are related to fish habitats) that can be used to infer the location of fish schools.

Answer:

sonar and satellite imagery