Plates at our planet’s surface move because of the intense heat in the Earth’s core that causes molten rock in the mantle layer to move. It moves in a pattern called a convection cell that forms when warm material rises, cools, and eventually sink down. As the cooled material sinks down, it is warmed and rises again.
"In republics, citizens have less direct control over government. ... (c) Why do some people hold that the United States is more properly called a republic rather than a democracy? In a Democracy there is no need for a Constitution, since the majority can simply change Law at a whim."
From google
Answer:
C. The fact that Earth rotates around its axis
Explanation:
The seasons are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels through its year-long path around the sun. The Earth has a tilt of 23.5 degrees relative to the "ecliptic plane"