Question

question 16
the fragrance of bread baking in a kitchen spreads to other rooms by
diffusion.
selective permeation.
osmosis.
active transport.

Explanation:

Diffusion is the movement of particles from an area of higher concentration to an area of lower concentration. The fragrance of baking bread consists of gas - phase particles that spread through the air in the house from the kitchen (higher concentration) to other rooms (lower concentration). Selective permeation involves a membrane allowing certain substances to pass through. Osmosis is the movement of water across a semi - permeable membrane. Active transport requires energy to move substances against a concentration gradient.

Answer:

A. diffusion