Engine: Expired / General Subjects

1. A External pressure is applied to the side of strong concentration forcing salt through the semi- permeable membrane to the side of weak concentration.
2. B External pressure is applied to the side of weak concentration forcing salt through the semi- permeable membrane to the side of strong concentration.
3. C External pressure is applied to the side of weak concentration forcing freshwater through the semi-permeable membrane to the side of strong concentration.
4. D External pressure is applied to the side of strong concentration forcing freshwater through the semi-permeable membrane to the side of weak concentration.

Tip: press A-D to answer