Which theory states that the entire crust is broken and is continuously moving?

Where are most volcanoes situated?

Which famous Philippine volcano is usually seen in world maps due to its violent eruption in 1991?

Based on geological hazard maps, what is the safest place in the country due to its very low risk in geologic disasters?

In a convection current, hot materials move ______________.

The uplifting and tearing apart of lithosphere occurs at ___________________.

Where is the source of heat in a mantle convection current?

Which of the following is NOT a method of heat transfer?

It is a landform produced when two continental plates converge.

Most transform fault boundaries are found in the oceans; a few are on the continents. An example of this type is the San Andreas Fault located in

It is otherwise known as an underwater mountain.

It is formed when ocean water flips upward, sometimes up to certain meters high, due to the great push caused by convergence of plates.

The youngest part of the ocean floor is found at the ___________.

What type of plate boundary occurs between the Nazca Plate and the South American Plate?

The crust and upper mantle make up the Earth’s ____________.

Based on the current position of the continents, South America is moving awayfrom Africa in what direction?

The idea proposed by Alfred Wegener to explain the continental shapes and positions is known as _____.

What strong evidence discovered by our scientist that Earth's magnetic reversal had been happening in the past?

Early observers thought continents might have been joined based on what observation?

All continents were once joined together forming a supercontinent called__________.