Question

which is the most likely nutrient that is in short supply?
water
nitrogen
hydrogen
carbon

Explanation:

Venus flytraps live in bogs. Bogs are water - rich but nitrogen - poor environments. Plants generally get nitrogen from the soil. Since the soil is lacking in nitrogen, the Venus flytrap has adapted to catch insects. Insects are a source of nitrogen (as proteins in insects contain nitrogen). Carbon is obtained from carbon dioxide in photosynthesis, hydrogen from water (also abundant in bogs), and water is plentiful in bogs.

Answer:

nitrogen