Most of the surface of the earth is covered with water and looks blue from space.
The one abt respiration the answer is the first one and circulatory system is the last one that says “delivery molecules …”
I believe the answer is A, if they have a stronger connection lower the vapor pressure so higher the boiling point
<span>Energy is absorbed and then released to form an emission line.
When electrons absorb energy they increase there energy level. This is only temporary and the excited electron then relaxes back down to its original energy level releasing energy.
The energy is released in form of EM radiation of a specific frequency depending on the element and how many energy levels the electron relaxes.
This forms an emission line.</span><span />
