Answer:
Explanation:
Answer
A fuel cell works on the principal of converting hydrogen and oxygen to electricity. It works on the principle of breaking down the hydrogen into a proton and an electron. When electrons have passed through a passage (having created electricity) they are united with elements in the atmosphere producing heat and electricity and water.
In the United States the direction the continental polar air mass move South toward the Gulf of Mexico to replace the rising maritime tropical air mass.
Answer: Option A
<u>Explanation:</u>
Air masses are large bodies of air moving horizontally in a very uniform way. Continental polar air mass is an air mass that forms near the poles. It originates in northern Canada and Alaska and move south then East.
The continental polar masses are the causes for the severe cold weather in the South during the cold months. Maritime tropical mass are warm and have high moisture content. During winter it comes in contact with the continental polar mass hence getting stabilized.
Per calendar year (365 days) there are 31536000 seconds
Answer:
The knuckles are like a jagged surface. When they rub together, they act as obstacles to each other. It’s difficult to move the hands freely as the knuckles catch and release one another. In the case of tectonic plates, if two plates rub, they release large amounts of energy, which can cause earthquakes.
