Question

what is a process in which substances move across the semipermeable membrane according to their concentration gradient ​

Answer 1

Answer:

When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. Greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide, ozone and some artificial chemicals such as chlorofluorocarbons (CFCs).

Explanation:

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Answer 2

Answer:

Osmosis is the movement of water through a semipermeable membrane according to the concentration gradient.