I know one it is with matter
You can do a mixture by making a fruit salad
Steel
Fabric (Cotton, Polyester, Felt)
Plastic
Wood
Paper
The answer is c.diffusion.
Diffusion is the movement of ions, molecules or atoms form high concentration to low concentration across the membrane without the need of any energy or any membrane gates. The oxygen enters the alveoli will be dissolved in the water vapor that is present on the wall of the alveoli and will diffuse directly to the blood across the alveolar membrane.
Answer:
C- private
Explanation:
This event seems to be exclusive. That is why it is private.