Given a scientific passage and an answer, generate a question for the given answer.

Input: Consider Input: Passage: Hydraulic car lifts also use fluid to transmit pressure and increase force. The lifts are used to raise cars, which are very heavy, so mechanics can work on them from underneath. Controls in airplanes use fluids to transmit pressure and increase force so a flick of a switch can raise or lower heavy landing gear. To see animations of hydraulic systems such as these, go to URLs:. Answer: hydraulic systems

Output: What kind of systems use fluid to transmit pressure and increase force?

Input: Consider Input: Passage: Sponges come in a variety of shapes and sizes. For example, they may be shaped like tubes, fans, cones, or just blobs. They range in diameter from about a centimeter (0.4 inches) to over a meter (3.3 feet). Many species live in colonies that may be quite large. Adult sponges are sessile. This means they are unable to move from place to place. Root-like projections anchor them to solid surfaces such as rocks and reefs. Answer: sponges

Output: Root-like projections anchor adults of what colony-dwelling animals to solid surfaces such as rocks and reefs?

Input: Consider Input: Passage: The human body radiates heat in the range of infrared light. Night goggles work by 'seeing' the infrared light emitted by our bodies. Answer: night goggles
Output: What piece of technology can you use to see infrared light?