Question

which is most likely to be caused by only capillary action? 1 the movement of water through pores in the soil. 2 the movement of water from roots to the top of a tall tree. 3 the movement of water across a plasma membrane. 4 the movement of blood cells through a capillary. report feedback or error difficulty: all

Explanation:

1. Analyze Option 1: Water movement through soil pores (capillary pores) is due to capillary action, which involves adhesion and cohesion in narrow spaces.
2. Analyze Option 2: Water from roots to tree top involves transpiration pull, cohesion, adhesion, and capillary action, but also other forces (transpiration).
3. Analyze Option 3: Water across plasma membrane is osmosis (diffusion of water), not capillary action.
4. Analyze Option 4: Blood cell movement in capillaries is due to blood pressure/circulation, not capillary action.

So only Option 1 is most likely caused by only capillary action.

Answer:

1. The movement of water through pores in the soil.