Answer:
1. True.
2. False.
3. True.
4. True.
Step-by-step explanation:
Ridge push is also known as gravitational sliding plate that happens at mid-ocean ridges. Slab pull is the pulling force exerted by a cold oceanic plate that is denser go inside into the mantle due to its weight. Slab pull is the other process that is responsible for the movement of tectonic plate. When the hot less denser particles cool down, they sinks due to their more mass and the other less dense particles rises up.