<span>The answer is option D.
Cold, or common cold, is a viral infectious disease that is infected through the air mainly via close contact, and touching objects previously grabbed by infected people
and avoiding going into the school and keeping a distance from her family is the best option in order to prevent further spread of the disease.</span>
Difussion occurs from a high concentrated region to a low concentrated region. The velocity of diffussion is proportional to the differential of concentrations. In the lung arrives blood with low levels of oxygen while the long is rich with fresh oxygen so the oxygen flows from the lung tissues to the blood.
The other tissues consume oxygen continually them they get poor in oxygen and so the oxygen that is in the blood diffuses to the tissue that is poor in oxygen.
All of the above would be the answer they want to see
This is true. Often times, people with mental/emotional health issues are viewed as weak or annoying, despite their personality.