Answer:
Hydrogen reacts with oxygen to produce water, which releases energy.
Explanation:
In any fuel cell chemical bonds are formed and energy is released . It is a redox reaction . Bond energy is converted into electrical energy.
In the given option , first option is not possible because methane reacts with oxygen to give carbon dioxide and water .
third and fourth option are ruled out because chemical reactions are using energy . No energy is released . so they are not possible.
Answer:
Explanation:
As per the Kepler's law of planetary motions :
1- The orbits are of elliptical shape having two foci and Sun is located on one foci.
2- The line segment that joins a planet and the Sun sweeps out equal are at equal interval of time.
3- The orbital period square is directly proportional to the cube of semi major axis of its orbit.
Kepler's law are applied on each of the planets of our solar system as the distance of the Sun from the planet is calculated through this.
For example : from Kepler's first law we can see the eccentricity of the Earth's orbit is 0.0167.
Answer:
the answer is c
Explanation:
it's c because the moon has to be a full moon to be a solar eclipse when the sun moon and earth line up
The cT is short for continental tropical. It originates over the Mexican Plateau region and desert SW. It is a warm air mass over a continent. It is hot and very dry because of where it formed. Hope these facts about continental tropical air masses helped you!
