Question

select one of the arrows that represents water changing state from liquid to gas.

Explanation:

Step1: Recall the process

The change of water from liquid to gas is evaporation. In the water cycle diagram, evaporation occurs from liquid water sources (like oceans, rivers, lakes) or from plants (transpiration) into the atmosphere.

Step2: Identify the arrows

The upward - pointing arrows from the water body (the blue area at the bottom right, representing the ocean or a large water body) and from the plants (the green trees) represent the movement of water from liquid to gas (evaporation or transpiration). Let's assume the arrow on the right - most, coming up from the water body, or the one from the trees (left - side upward arrow) or the right - side upward arrow from the water. Typically, the arrows coming up from the liquid water surface (like the ocean in the diagram, the blue area at the bottom right) or from the land's water (like rivers) or from plants represent evaporation. So the upward - pointing arrow from the water body (the right - most upward purple arrow) or the one from the trees (left - most upward purple arrow) or the middle upward arrow from the water - covered land. But more precisely, the arrows that go from liquid water (or moist surfaces) up into the air. So the arrow on the right, coming up from the water (the blue region at the bottom right) is a good candidate, or the one from the trees. But in general, the upward arrows from the liquid water (like the ocean, river) or from the ground (after precipitation) represent evaporation. So we look for the arrow that starts from a liquid water source (or a moist area) and goes up (towards the sky), which is the process of liquid to gas (evaporation).

Answer:

The right - most upward - pointing purple arrow (coming from the water body at the bottom right) or the left - most upward - pointing purple arrow (coming from the trees) or the middle upward - pointing purple arrow (coming from the water - covered land). (If we have to choose one, usually the arrow from the water body, the right - most upward arrow is a common representation of evaporation (liquid to gas change of water).)