Because displacement of water is the convenient way to obtain gas.
How an atom reacts chemically depends on how willing it is to share electrons with others.
It’s electrons
The answer is A. the solar ultraviolet ray breaks the molecule apart
1. the Moon must be in line with the Earth and Sun - New Moon for a solar eclipse and Full Moon for a lunar eclipse.2. the Moon must be at one of its nodes. Most of the time the Moon at New or Full passes above or below the Sun because its orbit is tilted relative to the ecliptic. An eclipse can occur only when it is at a node, in other words crossing the ecliptic.
