Answer:
Best example would be Carnot engine. It is possible in theory not in real life.
Explanation:
In real engines, the heat transfers at a sudden change in temperature whereas in a Carnot engine, the temperature remains constant. In our day to day lives, reversible processes can't be carried out and there is no such engine with 100 % efficiency. Thus, the Carnot cycle is practically not possible.
Answer:
C. the sun
Explanation:
The sun is the largest out of the moon and the earth.
Sun = 109 times Earth
Sun = 400 times moon
Fractures in the earths crust did results in the creation of the extensive rift valley in East Africa. True
