CFE 2025

Front

What is the Ring of Fire?

Back

The Ring of Fire is a region in the Pacific Ocean where a large number of earthquakes and volcanic eruptions occur due to tectonic plate movements. It is primarily a convergent boundary.

Front

What type of boundary is the Ring of Fire?

Back

The Ring of Fire is primarily a convergent boundary, where tectonic plates collide.

Front

What is a transform boundary?

Back

A transform boundary is a type of tectonic plate boundary where two plates slide past one another horizontally.

Front

What is the oldest rock layer in geological terms?

Back

The oldest rock layer is typically referred to as the 'basement rock' or 'crystalline rock' and is often found at the bottom of geological formations.

Front

What is a divergent boundary?

Back

A divergent boundary is where two tectonic plates move away from each other, allowing magma to rise and create new crust.

Front

What is a mid-ocean ridge?

Back

A mid-ocean ridge is an underwater mountain range formed by plate tectonics, specifically at divergent boundaries where new oceanic crust is created.

Front

What is subduction?

Back

Subduction is the process where one tectonic plate moves under another plate and sinks into the mantle.

Front

What is the role of magma in plate tectonics?

Back

Magma rises from the mantle at divergent boundaries to create new crust, contributing to the formation of mid-ocean ridges.

Front

What is a homozygous dominant genotype?

Back

A homozygous dominant genotype consists of two identical dominant alleles for a trait.

Front

What is the probability of offspring having a homozygous dominant genotype from a genetic cross?

Back

The probability can be calculated using a Punnett square; for example, a cross between two heterozygous parents results in a 25% chance.